{"title":"GY6 50cc Scooter Parts (139QMB)","description":"\u003cp\u003eReplacement and performance parts for 50cc GY6 scooters and mopeds with the 139QMB engine: carburetors, CDIs, big bore kits, belts, rollers, clutches and gasket sets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePopular categories:\u003c\/strong\u003e \u003ca href=\"\/collections\/scooter-tires\"\u003eScooter Tires\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-drive-belts\"\u003eScooter CVT Drive Belts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-variators-rollers\"\u003eScooter Variators \u0026amp; Roller Weights\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-carburetors\"\u003eScooter Carburetors \u0026amp; Jets\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cdi-ignition\"\u003eScooter CDI \u0026amp; Ignition\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-brake-pads\"\u003eScooter Brake Pads \u0026amp; Shoes\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-kits\"\u003eScooter Big Bore \u0026amp; Cylinder Kits\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-exhausts\"\u003eScooter Exhausts \u0026amp; Mufflers\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eBrowse all \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"47mm-gy6-50cc-139qmb-piston-kit","title":"47mm GY6 50cc (139QMB) Piston Kit","description":"\u003ch2\u003e47mm Piston Kit for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis 47mm piston kit is designed for 50cc QMB139 4-stroke engines. It includes all necessary components for a complete replacement, including the piston, rings, piston pin, and circlips. This part is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e typically swapped out during engine maintenance or performance upgrades. It ensures proper engine function and longevity when properly installed.\u003c\/p\u003e\u003ch3\u003eComponent Overview\u003c\/h3\u003e\u003cp\u003eThe kit features a piston with an outer diameter of 47mm and a total height of 34.4mm. Its compression height measures 17.25mm, while the wrist pin diameter is 13mm and the wrist pin length is 36.8mm. These dimensions are important for achieving the correct fit and performance in your engine.\u003c\/p\u003e\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\u003cp\u003eReplacing the piston in your GY6 50cc engine is a straightforward process for those familiar with scooter repairs. Ensure that all components are compatible and that you have the necessary tools to perform the installation. A new piston is often needed when the engine shows signs of wear, such as reduced compression or unusual noises.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 47mm outer diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Height:\u003c\/strong\u003e 34.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Height:\u003c\/strong\u003e 17.25mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Diameter:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Length:\u003c\/strong\u003e 36.8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Piston, Pin, Rings, Circlips\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis piston kit is specifically designed for use in GY6 50cc engines, particularly the QMB139 model.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQMB139 50cc\u003c\/li\u003e\n\u003cli\u003eQMB139 49cc\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-pistons-rings\"\u003eScooter Pistons \u0026amp; Piston Rings\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795083129063,"sku":"25-900012","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/47mm-gy6-50cc-139qmb-piston-kit-1.jpg?v=1791583342"},{"product_id":"upper-headset-cover-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Upper Headset Cover for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eReplacement Upper Headset Cover for CSC Go and GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis upper headset cover serves as a direct replacement for the CSC Go and other scooters using the GY6 50cc (139QMB) engine. It is designed to ensure proper fit and functionality, making it an important component for maintaining scooter performance. When it comes to \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, this cover is necessary for providing stability and comfort during rides. It's advisable to replace any damaged or leaking parts to improve the overall riding experience.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eReplacing worn or faulty parts like the upper headset cover can significantly improve your scooter's handling and ride quality. It plays a key role in keeping the steering mechanism stable, ensuring a smoother ride. If you notice issues such as leaks or a bouncy ride, it might be time to consider this replacement.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Upper Headset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go and other GY6 50cc scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part fits CSC Go models and other scooters equipped with the GY6 50cc (139QMB) engine.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCSC Go\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-suspension\"\u003eScooter Shocks \u0026amp; Suspension\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795098988775,"sku":"25-900361","price":45.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795099021543,"sku":"25-900362","price":45.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795099054311,"sku":"25-900363","price":45.0,"currency_code":"USD","in_stock":true},{"title":"GLOS BLACK","offer_id":52795099087079,"sku":"25-900364","price":45.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795099119847,"sku":"25-900365","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/upper-headset-cover-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583684"},{"product_id":"upper-legshield-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Upper Legshield for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eUpper Legshield for CSC Go and GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis upper legshield is a direct replacement part designed for the CSC Go and other scooters with a GY6 50cc (139QMB) engine. It plays a key role in protecting your scooter's frame, wiring, and engine while contributing to its overall appearance. This part is one of the common \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can improve your ride's aesthetics. Ensure you confirm the specific position and color that matches your model and production year.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eBody panels like the upper legshield are important for maintaining the look of your scooter. They protect key components and can be replaced if damaged or worn out.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Upper Legshield\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go and other GY6 50cc scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part fits CSC Go scooters and other vehicles equipped with a GY6 50cc engine.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCSC Go\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795099152615,"sku":"25-900354","price":73.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795099185383,"sku":"25-900355","price":73.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795099218151,"sku":"25-900356","price":73.0,"currency_code":"USD","in_stock":true},{"title":"BLACK","offer_id":52795099250919,"sku":"25-900357","price":73.0,"currency_code":"USD","in_stock":true},{"title":"BLUE","offer_id":52795099283687,"sku":"25-900358","price":73.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795099316455,"sku":"25-900359","price":73.0,"currency_code":"USD","in_stock":true},{"title":"ORANGE","offer_id":52795099349223,"sku":"25-900360","price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/upper-legshield-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583684"},{"product_id":"premium-gy6-50cc-139qmb-short-gasket-set","title":"Premium GY6 50cc (139QMB) Short Gasket Set","description":"\u003ch2\u003eGY6 50cc Short Gasket Set for QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis short gasket set is designed for the GY6 50cc QMB139 engine, ensuring a proper seal for your scooter's covers and cylinders. It is important for keeping oil, fuel, and compression contained, which helps maintain engine performance. As one of the important \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, it should be replaced whenever you open the engine or notice any leaks. Choose from bore options of 39mm, 50mm, and 52mm to match your specific needs.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eGaskets and oil seals play a significant role in preventing leaks and ensuring engine efficiency. Replace them at the first sign of wear or when accessing the engine components, which helps to avoid further damage and maintain engine performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 39mm, 50mm, 52mm bore options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Short-case CVT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 50cc\/49cc engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis gasket set is compatible with various GY6 50cc scooter models utilizing the QMB139 engine.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eQMB139\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"39","offer_id":52795100004583,"sku":"25-900398","price":22.0,"currency_code":"USD","in_stock":true},{"title":"50","offer_id":52795100037351,"sku":"25-900399","price":22.0,"currency_code":"USD","in_stock":true},{"title":"52","offer_id":52795100070119,"sku":"25-900400","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/premium-gy6-50cc-139qmb-short-gasket-set-1.webp?v=1791583687"},{"product_id":"rear-upper-left-side-panel-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Rear Upper Left Side Panel for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eRear Upper Left Side Panel for CSC Go and GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis rear upper left side panel is designed for the CSC Go and other scooters equipped with the GY6 50cc (139QMB) engine. It serves as a protective barrier for the frame, wiring, and engine while improving the scooter's aesthetic appeal. This part is a straightforward replacement in the lineup of \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e. Ensure you verify the correct position and color for your specific model and production year, as variations may occur over time.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe rear upper left side panel plays an important role in safeguarding the internal components of your scooter. It not only protects the mechanical parts but also contributes to the overall appearance of the vehicle. Replacement is often necessary due to damage or wear over time.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Rear Upper Left\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go and other GY6 50cc (139QMB) scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis panel is compatible with CSC Go and other scooters using the GY6 50cc engine.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCSC Go\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795101118695,"sku":"25-900425","price":43.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795101151463,"sku":"25-900426","price":43.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795101184231,"sku":"25-900427","price":43.0,"currency_code":"USD","in_stock":true},{"title":"BLACK","offer_id":52795101216999,"sku":"25-900428","price":43.0,"currency_code":"USD","in_stock":true},{"title":"BLUE","offer_id":52795101249767,"sku":"25-900429","price":43.0,"currency_code":"USD","in_stock":true},{"title":"ORANGE","offer_id":52795101282535,"sku":"25-900430","price":40.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795101315303,"sku":"25-900431","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/rear-upper-left-side-panel-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583689"},{"product_id":"rear-gas-cap-panel-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Rear Gas Cap Panel for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eRear Gas Cap Panel for CSC Go and GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis rear gas cap panel serves as a replacement part for CSC Go scooters and other models equipped with the GY6 50cc (139QMB) engine. Designed to safeguard important components, it also contributes to the overall aesthetic of your scooter. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can be easily replaced at home for a fresh look and reliable functionality. Ensure you verify the specific position and color required for your model and year, as variations may exist across production runs.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eBody panels play an important role in shielding key components of your scooter while improving its appearance. The rear gas cap panel specifically secures the fuel tank area, ensuring that everything remains intact and works properly.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go and other GY6 50cc scooters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Confirm for specific model\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part fits CSC Go scooters and other models that utilize the GY6 50cc (139QMB) engine.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795101380839,"sku":"25-900432","price":12.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795101413607,"sku":"25-900433","price":12.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795101446375,"sku":"25-900434","price":12.0,"currency_code":"USD","in_stock":true},{"title":"BLACK","offer_id":52795101479143,"sku":"25-900435","price":12.0,"currency_code":"USD","in_stock":true},{"title":"BLUE","offer_id":52795101511911,"sku":"25-900436","price":12.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795101544679,"sku":"25-900437","price":12.0,"currency_code":"USD","in_stock":true},{"title":"ORANGE","offer_id":52795101577447,"sku":"25-900438","price":11.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/rear-gas-cap-panel-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583689"},{"product_id":"rear-upper-right-side-panel-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Rear Upper Right Side Panel for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eRear Upper Right Side Panel for CSC Go and GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis rear upper right side panel is designed for CSC Go and other GY6 50cc scooters. It is important for protecting components like the frame, wiring, and engine. This part plays a significant role in maintaining the scooter's aesthetic appeal. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that improve the look of your ride.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eBody panels are important for safeguarding the internal parts of your scooter. They also contribute to the overall appearance of the vehicle. Be sure to confirm the correct position and color for your specific model and production year.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Rear Upper Right\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go, other GY6 50cc scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis panel fits CSC Go and various GY6 50cc scooters.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCSC Go\u003c\/li\u003e\n\u003cli\u003eOther GY6 50cc scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795101708519,"sku":"25-900418","price":40.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795101741287,"sku":"25-900419","price":40.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795101774055,"sku":"25-900420","price":40.0,"currency_code":"USD","in_stock":true},{"title":"BLACK","offer_id":52795101806823,"sku":"25-900421","price":40.0,"currency_code":"USD","in_stock":true},{"title":"BLUE","offer_id":52795101839591,"sku":"25-900422","price":40.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795101872359,"sku":"25-900423","price":40.0,"currency_code":"USD","in_stock":true},{"title":"ORANGE","offer_id":52795101905127,"sku":"25-900424","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/rear-upper-right-side-panel-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583690"},{"product_id":"lower-legshield-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Lower Legshield for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eLower Legshield for CSC Go and 139QMB Scooters\u003c\/h2\u003e\u003cp\u003eThis lower legshield is designed specifically for CSC Go and other scooters equipped with the 139QMB engine. It serves as a protective cover for the frame, wiring, and engine, contributing to the overall aesthetic of the scooter. Like many \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, this component plays a significant role in maintaining the scooter's appearance while offering protection. Ensure you select the correct position for your specific model and production year.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe lower legshield is a body panel that not only adds to the visual appeal of your scooter but also safeguards important components from damage. Replacing a worn or damaged legshield is important to keep your scooter looking new and functioning properly.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Lower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go, 139QMB scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis lower legshield is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCSC Go\u003c\/li\u003e\n\u003cli\u003eOther GY6 50cc scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795103117543,"sku":"25-900482","price":31.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795103150311,"sku":"25-900483","price":31.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795103183079,"sku":"25-900484","price":31.0,"currency_code":"USD","in_stock":true},{"title":"BLACK","offer_id":52795103215847,"sku":"25-900485","price":31.0,"currency_code":"USD","in_stock":true},{"title":"GLOSS BLK","offer_id":52795103248615,"sku":"25-900486","price":31.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795103281383,"sku":"25-900487","price":31.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/lower-legshield-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583693"},{"product_id":"grabrail-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Grabrail for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eGrabrail for CSC Go and GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis grabrail serves as a reliable replacement for your scooter, ensuring safety and functionality. It is designed specifically for CSC Go and various GY6 50cc models, including the 139QMB scooters. Among the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, this component is important for maintaining the structure and stability of your ride. Always confirm compatibility with your original part before purchasing.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eReplace the grabrail if you notice signs of wear or damage, which can compromise your scooter's safety. A new grabrail helps maintain secure handling and rider comfort while on the road.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go, GY6 50cc scooters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 139QMB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis grabrail is compatible with CSC Go and other scooters featuring the GY6 50cc engine.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCSC Go\u003c\/li\u003e\n\u003cli\u003eGY6 50cc models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795106033895,"sku":"25-900530","price":11.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795106066663,"sku":"25-900531","price":11.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795106099431,"sku":"25-900532","price":11.0,"currency_code":"USD","in_stock":true},{"title":"BLACK","offer_id":52795106132199,"sku":"25-900533","price":11.0,"currency_code":"USD","in_stock":true},{"title":"BLUE","offer_id":52795106164967,"sku":"25-900534","price":11.0,"currency_code":"USD","in_stock":true},{"title":"MAT BLACK","offer_id":52795106197735,"sku":"25-900535","price":11.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795106230503,"sku":"25-900536","price":11.0,"currency_code":"USD","in_stock":true},{"title":"ORANGE","offer_id":52795106263271,"sku":"25-900537","price":11.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/grabrail-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583699"},{"product_id":"front-fender-for-csc-go-other-gy6-50cc-139qmb-scooters","title":"Front Fender for CSC Go \u0026 Other GY6 50cc (139QMB) Scooters","description":"\u003ch2\u003eFront Fender for CSC Go and 139QMB Scooters\u003c\/h2\u003e\u003cp\u003eThis front fender is designed for CSC Go scooters and other models equipped with the 139QMB engine. It plays an important role in protecting the frame, wiring, and engine while improving the scooter's appearance. It is one of the straightforward \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e to replace at home. Ensure you select the correct position and color for your specific model and year.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eBody panels, including the fender, shield important components from debris and damage. It's important to verify the exact position and color, as these can vary with production dates.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Front\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Confirm for your model\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go and other 139QMB scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part is compatible with CSC Go scooters and various other scooters powered by the 139QMB engine.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCSC Go\u003c\/li\u003e\n\u003cli\u003eOther 139QMB scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"WHITE","offer_id":52795106492647,"sku":"25-900556","price":42.0,"currency_code":"USD","in_stock":true},{"title":"MINTGRN","offer_id":52795106525415,"sku":"25-900557","price":42.0,"currency_code":"USD","in_stock":true},{"title":"TITANIUM","offer_id":52795106558183,"sku":"25-900558","price":42.0,"currency_code":"USD","in_stock":true},{"title":"BLACK","offer_id":52795106590951,"sku":"25-900559","price":42.0,"currency_code":"USD","in_stock":true},{"title":"GLOSS BLK","offer_id":52795106623719,"sku":"25-900560","price":42.0,"currency_code":"USD","in_stock":true},{"title":"GREEN","offer_id":52795106656487,"sku":"25-900561","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/front-fender-for-csc-go-other-gy6-50cc-139qmb-scooters-1.jpg?v=1791583700"},{"product_id":"gy6-50cc-139qmb-right-crankcase-cover-33-tooth-gear","title":"GY6 50cc (139QMB) Right Crankcase Cover, 33 Tooth Gear","description":"\u003ch2\u003eRight Crankcase Cover for GY6 50cc 139QMB Engines\u003c\/h2\u003e\u003cp\u003eThis right crankcase cover is designed for 50cc 4-stroke QMB139 engines equipped with a 33 tooth oil pump gear. It plays an important role in protecting the engine and associated components while contributing to the overall appearance of your scooter. This part is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can be easily replaced to maintain your vehicle's functionality. Ensure you verify the correct position and color based on your specific model and year.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eBody panels like this crankcase cover safeguard the scooter's frame, wiring, and engine from damage. They also improve the aesthetic appeal of your vehicle. Replacing a worn or damaged cover helps ensure proper performance and protection.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Right Crankcase Cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 50cc 4-stroke QMB139 engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Pump Gear:\u003c\/strong\u003e 33 Tooth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part is compatible with GY6 50cc 139QMB engines.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-body-panels\"\u003eScooter Body Panels \u0026amp; Fenders\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-transmission\"\u003eScooter Transmission \u0026amp; Final Drive\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795119337703,"sku":"25-900979","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-right-crankcase-cover-33-tooth-gear-1.jpg?v=1791583790"},{"product_id":"gy6-50cc-139qmb-81cc-50mm-big-bore-gasket-kit","title":"GY6 50cc (139QMB) 81cc 50mm Big Bore Gasket Kit","description":"\u003ch2\u003e81cc Big Bore Gasket Kit for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis Big Bore Gasket Kit is specifically designed for 50mm bore kits installed on GY6 139QMB and 139QMA 50cc scooter engines. With a 50mm bore, the engine displacement increases to approximately 81cc, making this kit ideal for those looking to replace gaskets after a rebuild or repair. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can help ensure proper sealing and performance in your engine.\u003c\/p\u003e\u003ch3\u003eGasket Components\u003c\/h3\u003e\u003cp\u003eThe kit includes a coated head gasket that effectively seals combustion pressure, ensuring reliable engine performance. Additionally, a paper base gasket is provided to create a tight seal between the cylinder and the crankcase. An intake gasket is also included, which connects the intake manifold to the cylinder head for improved airflow.\u003c\/p\u003e\u003ch3\u003eInstallation Recommendations\u003c\/h3\u003e\u003cp\u003eFor best results during installation, clean all mating surfaces thoroughly before applying the gaskets. It is advisable to install the gaskets dry and to evenly torque the head nuts in a cross pattern to the specified settings. This ensures that the gaskets function correctly and maintain a proper seal.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 50mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 81cc (with 139QMB stroke)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Head gasket, cylinder base gasket, intake manifold gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e GY6 139QMB \/ 139QMA 50cc 4-stroke\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis gasket kit is compatible with GY6 139QMB and 139QMA engines. Ensure that your engine's cylinder bore measures 50mm before purchasing.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-kits\"\u003eScooter Big Bore \u0026amp; Cylinder Kits\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795119599847,"sku":"25-901011","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/50mm-big-bore-gasket-kit-for-gy6-50cc-139qmb-81cc-1.webp?v=1791583792"},{"product_id":"gy6-50cc-full-paper-gasket-430mm-47mm","title":"GY6 50cc Full Paper Gasket, 430mm-47mm","description":"\u003ch2\u003eGY6 50cc Full Paper Gasket for Scooters\u003c\/h2\u003e\u003cp\u003eThis full paper gasket is designed for GY6 50cc engines. It ensures proper sealing of oil, fuel, and compression. This part is important when servicing your engine. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that should be replaced each time the engine casing is accessed.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eGaskets play a key role in maintaining engine integrity. Replace them at the first sign of any leaks or each time you open the engine compartment.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Paper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 430mm x 47mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis gasket fits GY6 50cc engines commonly found in various scooters.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795119698151,"sku":"25-901013","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-full-paper-gasket-430mm-47mm-1.webp?v=1791583793"},{"product_id":"performance-gy6-50cc-139qmb-72cc-47mm-piston-kit-with-rings","title":"Performance GY6 50cc (139QMB) 72cc 47mm Piston Kit with Rings","description":"\u003ch2\u003e47mm Piston Kit for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis 47mm piston kit is designed for GY6 139QMB 50cc engines, offering a significant upgrade to your performance. It effectively transforms a big-bore cylinder into a 72cc powerhouse, making it a cost-effective solution for those looking to rebuild rather than replace their existing components. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that will improve your ride for off-road use.\u003c\/p\u003e\u003ch3\u003eComplete Piston Assembly\u003c\/h3\u003e\u003cp\u003eThis kit comes with everything you need for installation. It includes a piston, piston rings, a piston pin measuring 13mm in diameter, and two clips for securing the pin. The complete assembly ensures compatibility and ease of use, allowing for a straightforward rebuild of your big-bore cylinder.\u003c\/p\u003e\u003ch3\u003eDurable Ring Set\u003c\/h3\u003e\u003cp\u003eThe piston rings are sized specifically for the 47mm bore, ensuring a proper seal and maintaining engine compression. Replacing worn piston components can restore power without the need for a full kit replacement.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Diameter:\u003c\/strong\u003e 47mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e Approximately 72cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Pin Diameter:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Piston, piston rings, piston pin, and 2 clips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Engine:\u003c\/strong\u003e GY6 139QMB 50cc\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis piston kit is specifically for GY6 139QMB 50cc engines with a 47mm big-bore cylinder. Ensure your engine code matches to confirm compatibility.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-pistons-rings\"\u003eScooter Pistons \u0026amp; Piston Rings\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795120058599,"sku":"25-901008","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/rdln-performance-gy6-50cc-139qmb-72cc-47mm-piston-kit-with-rings-1.webp?v=1791583796"},{"product_id":"gy6-50cc-full-paper-gasket-400mm-47mm","title":"GY6 50cc Full Paper Gasket, 400mm-47mm","description":"\u003ch2\u003eGY6 50cc Full Paper Gasket for Scooter Engines\u003c\/h2\u003e\u003cp\u003eThis full paper gasket is designed specifically for GY6 50cc engines, ensuring a proper seal for oil, fuel, and compression. It is important for maintaining engine integrity and performance. Like most \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, it is necessary to replace this gasket whenever a cylinder or cover is removed or if any leaks appear. This gasket helps keep your engine running smoothly and efficiently.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eGaskets play a critical role in sealing the engine, preventing leaks of oil and fuel. It's advisable to replace this part whenever you open up your engine or notice any signs of leakage to maintain performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Paper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 400mm x 47mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis gasket is compatible with GY6 50cc engines, making it suitable for various scooter models.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795120550119,"sku":"25-901014","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-full-paper-gasket-400mm-47mm-1.webp?v=1791583799"},{"product_id":"chinese-50cc-gy6-50cc-139qmb-complete-engine-gasket-set","title":"Chinese 50cc GY6 50cc (139QMB) Complete Engine Gasket Set","description":"\u003ch2\u003eComplete Gasket Set for GY6 50cc 4-Stroke Engines\u003c\/h2\u003e\u003cp\u003eThis Complete Engine Gasket Set is designed specifically for GY6 50cc 4-stroke engines, including the QMB139 model. It provides all the necessary seals and gaskets for a thorough engine rebuild, whether you are refreshing the top end or splitting the crankcase. This set is one of the key \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e needed to eliminate leaks and restore proper engine compression.\u003c\/p\u003e\u003ch3\u003eComprehensive Gasket Components\u003c\/h3\u003e\u003cp\u003eThe kit includes important gaskets for various engine components. It features engine case gaskets for the crankcase and stator\/magneto cover, along with top-end seals such as the cylinder head gasket, the base gasket, and the gasket for the valve cover. Additionally, it contains a CVT cover gasket and a crush-style exhaust gasket with an intake manifold spacer O-ring.\u003c\/p\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cp\u003eBefore installing the new gaskets, ensure that all mating surfaces are clean and free from old gasket material. Proper preparation is important to avoid leaks and ensure a secure fit. This set is compatible with both short and long case configurations, so select the appropriate size based on your engine's specifications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-density gasket material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Engine case, top end, CVT, exhaust, and intake\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 139QMB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis gasket set is suitable for GY6 50cc 4-stroke engines, including the following:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGY6 50cc (QMB139)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-engines\"\u003eScooter Engines \u0026amp; Engine Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"44-SC","offer_id":52795124973799,"sku":"25-901097","price":14.0,"currency_code":"USD","in_stock":true},{"title":"48-LC","offer_id":52795125006567,"sku":"25-901098","price":14.0,"currency_code":"USD","in_stock":true},{"title":"52-LC","offer_id":52795125039335,"sku":"25-901099","price":14.0,"currency_code":"USD","in_stock":true},{"title":"52-SC","offer_id":52795125072103,"sku":"25-901100","price":12.0,"currency_code":"USD","in_stock":true},{"title":"48-SC","offer_id":52795125104871,"sku":"25-901101","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/chinese-50cc-gy6-50cc-139qmb-complete-engine-gasket-set-1.webp?v=1791583817"},{"product_id":"gy6-50cc-139qmb-variator-slides","title":"GY6 50cc (139QMB) Variator Slides","description":"\u003ch2\u003eVariator Slides for GY6 50cc 4-Stroke Engines\u003c\/h2\u003e\u003cp\u003eThe variator slides play an important role in managing the automatic transmission of your scooter. Designed for GY6 50cc engines, these parts directly influence acceleration and top speed. Worn or flat rollers can lead to sluggish performance, making timely replacement significant for effective riding. This part is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can significantly improve your scooter's performance.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eVariator slides work in conjunction with roller weights to dictate how your scooter shifts gears. When the rollers wear down, you may experience decreased acceleration and a lower maximum speed. By selecting the correct size of roller weights, you can improve acceleration with lighter rollers or increase cruising speed using heavier options.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 50cc 4-stroke QMB139 engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part is compatible with GY6 50cc 4-stroke engines.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-variators-rollers\"\u003eScooter Variators \u0026amp; Roller Weights\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795126677735,"sku":"25-901217","price":3.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/variator-slides-gy6-50cc-139qmb-1.jpg?v=1791583829"},{"product_id":"gy6-50cc-139qmb-engines-exhaust-system-with-muffler","title":"GY6 50cc (139QMB) Engines Exhaust System with Muffler","description":"\u003ch2\u003eExhaust System with Muffler for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis exhaust system is designed for the GY6 50cc (139QMB) engine, commonly found in various scooters. It improves engine performance by optimizing airflow and sound. If you're looking to replace a damaged exhaust or seeking a performance upgrade, this is a solid choice. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can make a noticeable difference in your ride.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe exhaust system significantly impacts how well your engine breathes, affecting both power and sound. Upgrade or replace a worn exhaust to boost performance. Be sure to check that the mounting points align with your specific scooter model.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Bolt Hole Spacing:\u003c\/strong\u003e 50 ½mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 26 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuffler Length:\u003c\/strong\u003e 13 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Pipe Length:\u003c\/strong\u003e 13 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis exhaust system is suitable for the following engines:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eQMB139 50cc\/49cc\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-exhausts\"\u003eScooter Exhausts \u0026amp; Mufflers\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-engines\"\u003eScooter Engines \u0026amp; Engine Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795126710503,"sku":"25-901212","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/exhaust-system-w-muffler-for-gy6-50cc-139qmb-engines-1.jpg?v=1791583829"},{"product_id":"10mm-speedometer-hub-for-bintelli-gy6-50cc-139qmb","title":"10mm Speedometer Hub for Bintelli \u0026 GY6 50cc (139QMB)","description":"\u003ch2\u003e10mm Speedometer Hub for Bintelli 50cc Scooters and GY6 50cc Models\u003c\/h2\u003e\u003cp\u003eThe 10mm Speedometer Hub is a critical component for 50cc scooters featuring a 10mm front axle. This part is designed to restore accurate speed readings and ensure the functionality of your dashboard. It is one of the key \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e and serves as a reliable replacement for malfunctioning speedometer gears. Ideal for those experiencing erratic needle movement or complete failure, this hub guarantees a precise connection to your speedometer cable.\u003c\/p\u003e\u003ch3\u003eConstruction and Performance\u003c\/h3\u003e\u003cp\u003eThis speedometer hub is engineered to meet OEM specifications, specifically designed as a direct replacement for the factory unit. The durable internal gearing is constructed to withstand the wear and tear that commonly leads to speedometer issues. Its sealed housing protects against dust and moisture, significantly extending the lifespan of your speedometer cable.\u003c\/p\u003e\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\u003cp\u003eTo ensure proper fitment, this hub features standard 12mm threading for a smooth connection to typical 50cc speedometer cables. When installing, it's advisable to apply a generous amount of high-temperature lithium grease within the gear compartment for effective operation. Before purchasing, verify your scooter's axle diameter, as some models may vary.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle Hole Diameter:\u003c\/strong\u003e 10mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Thread Diameter:\u003c\/strong\u003e 12mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Outer Diameter:\u003c\/strong\u003e 47mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 44800-XSG-9000-A\/B\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis speedometer hub is compatible with 139QMB-based scooters that utilize a 10mm front axle:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBintelli: Bintelli 50cc Models (Scorch, Breeze, etc.)\u003c\/li\u003e\n\u003cli\u003eZNEN \/ Taizhou Zhongneng: Universal 10mm Axle Applications\u003c\/li\u003e\n\u003cli\u003e139QMB Platforms: 139QMA, 139QMB, 1P39QMB, 147QMD\u003c\/li\u003e\n\u003cli\u003eChicago Scooter Co.: Compatible with select 10mm axle models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gauges\"\u003eScooter Speedometers \u0026amp; Gauges\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795127234791,"sku":"25-901242","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/10mm-speedometer-hub-for-bintelli-gy6-50cc-139qmb-1.jpg?v=1791583834"},{"product_id":"gy6-50cc-139qmb-performance-clutch-2000-rpm","title":"GY6 50cc (139QMB) Performance Clutch - 2000 RPM","description":"\u003ch2\u003ePerformance Clutch for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis performance clutch is designed for GY6 50cc engines, specifically the 139QMB model. It features 2000 RPM clutch springs that improve engagement and launch response. This part is important for maintaining performance in your scooter. It is one of the straightforward \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e to replace at home.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe clutch connects to the rear wheel when the engine speed rises. If the clutch is worn, you may experience issues like shuddering or slipping. Stiffer springs can increase the engagement RPM for better acceleration.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter (Flat Side to Flat Side):\u003c\/strong\u003e 24mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter (Round Side to Round Side):\u003c\/strong\u003e 28mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Outer Diameter:\u003c\/strong\u003e 105mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch Springs RPM:\u003c\/strong\u003e 2000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis clutch is suitable for 50cc, 60cc, 80cc, and 100cc QMB139 4-stroke engines.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-clutches\"\u003eScooter Clutches \u0026amp; Clutch Springs\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795127562471,"sku":"25-901277","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-performance-clutch-2000-rpm-1.jpg?v=1791583836"},{"product_id":"gy6-50cc-139qmb-long-case-723-17-5-28-premium-cvt-drive-belt","title":"GY6 50cc (139QMB) Long Case 723-17.5-28 Premium CVT Drive Belt","description":"\u003ch2\u003eCVT Drive Belt for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThe 723-17.5-28 CVT Drive Belt is an important component designed for 50cc scooters featuring the GY6 engine. This professional-grade belt is manufactured in Japan to meet OEM specifications, ensuring a perfect fit and reliable performance. It is one of the significant \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can improve your scooter's transmission efficiency. Made with advanced synthetic rubber, this belt provides superior heat resistance and minimizes slippage during operation.\u003c\/p\u003e\u003ch3\u003eConstruction and Performance\u003c\/h3\u003e\u003cp\u003eThis drive belt incorporates reinforced tensile cords made from high-modulus synthetic materials, which prevent stretching and maintain shape under heavy loads. The precision-ground sidewalls contribute to smooth and quiet shifting, allowing for consistent performance throughout your ride. Designed for long-lasting use, this belt maintains its integrity even under high-temperature conditions, making it suitable for various riding scenarios.\u003c\/p\u003e\u003ch3\u003eInstallation and Maintenance\u003c\/h3\u003e\u003cp\u003eReplacing the CVT drive belt is a straightforward task that can be performed at home. Before installing the new belt, it's advisable to clean the variator and clutch components using a brake cleaner solution to eliminate any old rubber residue. This step helps ensure the best performance and longevity of the belt.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Synthetic Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Length 723mm, Width 17.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Angle:\u003c\/strong\u003e 28°\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e GY6 50cc \/ QMB139 (Long Case)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 23100-GW3-013, 23100-GW3-000, 23100-GW3-003\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis drive belt is suitable for scooters equipped with 50cc to 100cc engines that have either 12-inch wheels or 13-inch wheels. It is not compatible with scooters featuring 10-inch wheels.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHonda: NH90 Yupy (1991-94), Shadow 90 (SRX90), Bali 100 EX (SJ100), Lead 90, Joker 90, Broad 90, Cabina 90\u003c\/li\u003e\n\u003cli\u003eChicago Scooter Co.: Pug 50\u003c\/li\u003e\n\u003cli\u003eKymco \/ SYM: Agility 50, Fiddle 50, Jet 50 (Verify 723 belt length)\u003c\/li\u003e\n\u003cli\u003eLance \/ Bintelli: PCH 50, Cabo 50, Cali Classic 50, Havana Classic 50, Beast 50, Scorch 50\u003c\/li\u003e\n\u003cli\u003eLexmoto \/ Pulse: FMR 50 (WY50QT-58R), Lightspeed 2 50 (WY50QT-58)\u003c\/li\u003e\n\u003cli\u003eChinese Brands: TaoTao, Roketa, IceBear, Wolf Brand, Peace Sports, Znen, Jonway (Long Case 50cc models)\u003c\/li\u003e\n\u003cli\u003ePowersports: TrailMaster buggies\/go-karts, Eton 50cc ATVs \u0026amp; Scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795127759079,"sku":"25-901253","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/723-17-5-28-premium-cvt-drive-belt-for-gy6-50cc-139qmb-long-case-1.jpg?v=1791583836"},{"product_id":"72cc-big-bore-cylinder-kit-42mm-for-gy6-50cc-139qmb-gy6-50cc-139qmb","title":"72cc Big Bore Cylinder Kit 42mm for GY6 50cc (139QMB) \/ GY6 50cc (139QMB)","description":"\u003ch2\u003e72cc Big Bore Cylinder Kit for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eBoost the performance of your 50cc four-stroke scooter with this 72cc Big Bore Cylinder Kit. Designed for QMB139 and 139QMB engine models, this kit increases displacement to approximately 72cc by utilizing a 47mm bore with the standard 41.4mm stroke. This part is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that will significantly improve your engine's power and efficiency.\u003c\/p\u003e\u003ch3\u003eComponents Included\u003c\/h3\u003e\u003cp\u003eThis kit comes complete with all necessary components for installation. It includes a cylinder, matched piston assembly with rings, wrist pin, and circlips. Additionally, all required gaskets—such as the gaskets for the cylinder head, base, and exhaust—are provided, allowing for a straightforward assembly process.\u003c\/p\u003e\u003ch3\u003eInstallation Compatibility\u003c\/h3\u003e\u003cp\u003eThe drop-in design of this cylinder means no modifications to the crankcase are required for compatible engines. Before installation, ensure proper comparison of the original cylinder mounting layout, sleeve clearance, wrist pin diameter, and piston dimensions to confirm compatibility. It's important to check for cylinder-head compatibility and piston-to-valve clearance, as further adjustments may be necessary.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Reference:\u003c\/strong\u003e NK100.47\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Bore:\u003c\/strong\u003e 47mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e Approximately 72cc with a 41.4mm stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Sleeve Outer Diameter:\u003c\/strong\u003e 53.1mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Diameter:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Piston Height:\u003c\/strong\u003e 34.1mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e QMB139 \/ 139QMB 49cc-50cc four-stroke\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis cylinder kit is compatible with select Chinese-market QMB139 and 139QMB engines, designed for 49cc and 50cc four-stroke scooters. Ensure to verify compatibility with your specific engine model.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQMB139\u003c\/li\u003e\n\u003cli\u003e139QMB\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-kits\"\u003eScooter Big Bore \u0026amp; Cylinder Kits\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795128807655,"sku":"25-901317","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/72cc-big-bore-cylinder-kit-42mm-for-gy6-50cc-139qmb-gy6-50cc-139qmb-1.jpg?v=1791583844"},{"product_id":"gy6-50cc-139qmb-non-emissions-head-69mm-valves","title":"GY6 50cc (139QMB) Non Emissions Head - 69mm Valves","description":"\u003ch2\u003eNon-Emissions Cylinder Head for GY6 50cc and 80cc Engines\u003c\/h2\u003e\u003cp\u003eThis non-emissions head is designed for the GY6 50cc and 80cc engine types, specifically the 139QMB and 139QMA models. It provides an excellent replacement option for those looking to maintain or improve the performance of their off-road scooters. As one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, this head comes fully assembled, making installation straightforward. Whether you're replacing a worn-out part or upgrading your engine, this component is built to meet your needs.\u003c\/p\u003e\u003ch3\u003eConstruction and Features\u003c\/h3\u003e\u003cp\u003eThis cylinder head features a 4-bolt deck pattern and is equipped with valves that measure 69mm in length. The head has no secondary air port, making it suitable for non-emissions applications. The intake and exhaust ports have diameters of 17mm and 18mm, respectively, ensuring proper airflow for effective engine operation.\u003c\/p\u003e\u003ch3\u003eInstallation and Replacement\u003c\/h3\u003e\u003cp\u003eWith all components such as valves, springs, and retainers pre-installed, this head simplifies the replacement process. It fits directly onto compatible engines without the need for extra modifications. Regular replacement may be necessary if you notice performance issues, such as reduced power or increased engine noise.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 139QMB \/ 139QMA 4-stroke 50cc \/ 80cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Non-emissions (no secondary air port)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Fully assembled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e 69mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Center-to-Center Spacing:\u003c\/strong\u003e 70.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Port Diameter:\u003c\/strong\u003e 17mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Port Diameter:\u003c\/strong\u003e 18mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Pattern:\u003c\/strong\u003e 4-bolt\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis cylinder head is compatible with various engines based on the 139QMB platform. It fits the following engine codes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMA\u003c\/li\u003e\n\u003cli\u003e139QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMA-2\u003c\/li\u003e\n\u003cli\u003eYN139QMB\u003c\/li\u003e\n\u003cli\u003eJJ1P39QMB\u003c\/li\u003e\n\u003cli\u003e139FMA-2\u003c\/li\u003e\n\u003cli\u003eBD1P39QMB\u003c\/li\u003e\n\u003cli\u003eBN139QMB\u003c\/li\u003e\n\u003cli\u003e147QMD\u003c\/li\u003e\n\u003cli\u003eOther QMA models\u003c\/li\u003e\n\u003cli\u003eOther QMB models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795130314983,"sku":"25-901369","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-non-emissions-head-69mm-valves-1.jpg?v=1791583856"},{"product_id":"gy6-50cc-139qmb-performance-clutch-set","title":"GY6 50cc (139QMB) Performance Clutch Set","description":"\u003ch2\u003ePerformance Clutch Set for GY6 50cc and 80cc Engines\u003c\/h2\u003e\u003cp\u003eThe GY6 50cc performance clutch set is designed for 139QMB-based engines, improving your scooter's performance. This set includes a ventilated clutch bell that promotes better heat dissipation, extending the life of the clutch. It also comes with a 1500 RPM torque spring for improved engagement and 1000 RPM clutch springs for better responsiveness at lower speeds. This makes it one of the straightforward \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e to install at home.\u003c\/p\u003e\u003ch3\u003eImproved Heat Management\u003c\/h3\u003e\u003cp\u003eThe ventilated design of the clutch bell aids in dissipating heat effectively, which is important for maintaining performance during rides. This feature not only helps to prolong the clutch's lifespan but also ensures consistent performance under various conditions.\u003c\/p\u003e\u003ch3\u003eFirmer Engagement and Response\u003c\/h3\u003e\u003cp\u003eThe inclusion of a 1500 RPM torque spring allows for a firmer clutch engagement, providing a more responsive throttle feel. Coupled with the 1000 RPM clutch springs, this setup significantly improves low-end power delivery, making your rides smoother and more enjoyable.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch Bell Inner Diameter:\u003c\/strong\u003e 107mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch Bell Outer Diameter:\u003c\/strong\u003e 115mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch Inner Diameter:\u003c\/strong\u003e 12mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing:\u003c\/strong\u003e 6901 RS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Splines:\u003c\/strong\u003e 22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter (Peak to Peak):\u003c\/strong\u003e 11mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter (Valley to Valley):\u003c\/strong\u003e 12mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e 1500 RPM torque spring, 1000 RPM clutch springs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis clutch set is compatible with various 50cc and 80cc 4-stroke engines, specifically designed for the following engine codes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMA\u003c\/li\u003e\n\u003cli\u003e139QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMA-2\u003c\/li\u003e\n\u003cli\u003eYN139QMB\u003c\/li\u003e\n\u003cli\u003eJJ1P39QMB\u003c\/li\u003e\n\u003cli\u003e139FMA-2\u003c\/li\u003e\n\u003cli\u003eBD1P39QMB\u003c\/li\u003e\n\u003cli\u003eBN139QMB\u003c\/li\u003e\n\u003cli\u003e147QMD\u003c\/li\u003e\n\u003cli\u003eOther QMA models\u003c\/li\u003e\n\u003cli\u003eOther QMB models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-clutches\"\u003eScooter Clutches \u0026amp; Clutch Springs\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795130642663,"sku":"25-901381","price":147.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-performance-clutch-set-1.webp?v=1791583858"},{"product_id":"gy6-50cc-139qmb-motor-mount-bushing","title":"GY6 50cc (139QMB) Motor Mount Bushing","description":"\u003ch2\u003eMotor Mount Bushing for GY6 50cc and 80cc Engines\u003c\/h2\u003e\u003cp\u003eThe motor mount bushing is an important component for scooters and vehicles powered by GY6 engines. Designed to provide secure engine mounting, it helps reduce vibrations during operation, ensuring a smoother ride. It is among the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e necessary for maintaining the integrity of your vehicle's performance. Before purchasing, make sure to check the engine code on your scooter for compatibility.\u003c\/p\u003e\u003ch3\u003eConstruction and Functionality\u003c\/h3\u003e\u003cp\u003eThis part is engineered for durability and reliable performance in 139QMB-based engines. Its design allows for precise fitting, ensuring that the engine remains securely in place while absorbing vibrations. Replacing a worn or damaged motor mount bushing can help improve your scooter's overall handling and comfort.\u003c\/p\u003e\u003ch3\u003eInstallation and Replacement\u003c\/h3\u003e\u003cp\u003eInstalling a new motor mount bushing is a straightforward process that can typically be done with basic tools. Make sure to compare the dimensions of the new bushing with the original part to ensure a proper fit. If you notice excessive engine movement or vibrations, it may be time to replace the bushing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 10mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 28mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 22mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis motor mount bushing is compatible with various 50cc and 80cc engines, specifically those with the 139QMB engine code and its variants. Ensure to verify the engine code before installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMA\u003c\/li\u003e\n\u003cli\u003e1P39QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMA-2\u003c\/li\u003e\n\u003cli\u003eYN139QMB\u003c\/li\u003e\n\u003cli\u003eJJ1P39QMB\u003c\/li\u003e\n\u003cli\u003e139FMA-2\u003c\/li\u003e\n\u003cli\u003eBD1P39QMB\u003c\/li\u003e\n\u003cli\u003eBN139QMB\u003c\/li\u003e\n\u003cli\u003e147QMD\u003c\/li\u003e\n\u003cli\u003eOther QMA models\u003c\/li\u003e\n\u003cli\u003eOther QMB models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-electric-motors\"\u003eElectric Scooter Hub Motors \u0026amp; Controllers\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-hardware\"\u003eScooter Bolts, Screws \u0026amp; Hardware\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795130839271,"sku":"25-901383","price":3.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-motor-mount-bushing-1.jpg?v=1791583859"},{"product_id":"universal-gy6-50cc-139qmb-carburetor-intake-insulator-spacer","title":"Universal GY6 50cc (139QMB) Carburetor Intake Insulator Spacer","description":"\u003ch2\u003eCarburetor Insulator Spacer for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThe Carburetor Intake Insulator Spacer is designed specifically for the 50cc 4-stroke QMB139 (GY6) engine platform. This important component is positioned between the intake system and the engine head, providing a thermal barrier to protect the carburetor from excessive engine heat. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that ensures stable idle performance and prevents issues like fuel boiling and vapor lock, which can disrupt engine function.\u003c\/p\u003e\u003ch3\u003eThermal Isolation\u003c\/h3\u003e\u003cp\u003eThis insulator is constructed from a composite material that minimizes heat transfer, helping to maintain appropriate carburetor temperatures. This is necessary for reliable fuel atomization, allowing for smoother engine operation and better fuel efficiency.\u003c\/p\u003e\u003ch3\u003eAirtight Sealing and Fitment\u003c\/h3\u003e\u003cp\u003eThe insulator features precision-flat mating surfaces that create a secure seal to prevent vacuum leaks, a common cause of inconsistent idling and lean-run conditions. With a standard bolt-hole spacing of 45mm, it is engineered for a straightforward installation on most Chinese 50cc 4-stroke intake systems.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heat-Resistant Phenolic\/Plastic Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Hole Diameter:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt Hole Spacing:\u003c\/strong\u003e 45mm (Center-to-Center)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 50cc 4-Stroke QMB139 Engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis insulator is a standard replacement for various 50cc 4-stroke engines, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTaoTao: ATM50-A1, Pony 50, Speedy 50, Venus 50\u003c\/li\u003e\n\u003cli\u003eWolf: Islander, Jet, Lucky, RX-50, V50\u003c\/li\u003e\n\u003cli\u003eBintelli: Breeze 50, Sprint 50, Havoc 50\u003c\/li\u003e\n\u003cli\u003eChicago Scooter Co.: Go., Go. Max\u003c\/li\u003e\n\u003cli\u003eChinese 139QMB: Most Chinese model 50cc scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-carburetors\"\u003eScooter Carburetors \u0026amp; Jets\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-fuel-system\"\u003eScooter Fuel System Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795131232487,"sku":"25-901354","price":2.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/universal-gy6-50cc-139qmb-carburetor-intake-insulator-spacer-1.jpg?v=1791583862"},{"product_id":"gy6-50cc-139qmb-4t-rear-clutch-pulley-assembly","title":"GY6 50cc (139QMB) 4T Rear Clutch Pulley Assembly","description":"\u003ch2\u003eRear Clutch Pulley Assembly for 139QMB 50cc and 80cc Scooters\u003c\/h2\u003e\u003cp\u003eThis rear clutch pulley assembly is designed for 50cc and 80cc 4-stroke scooters equipped with a 139QMB engine. It serves as a direct replacement for various models in the QMB139 and GY6 family. As one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, it plays an important role in the scooter’s automatic transmission system to ensure reliable performance.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe rear clutch pulley assembly is important for maintaining smooth shifting in your scooter's automatic transmission. Over time, wear and tear on components like the variator and roller weights can lead to sluggish acceleration and reduced top speed, making replacement necessary for restoring performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Clutch Width:\u003c\/strong\u003e 117mm (4.6\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD, and other QMA\/QMB variants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part is compatible with multiple scooter models using the 139QMB engine.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-variators-rollers\"\u003eScooter Variators \u0026amp; Roller Weights\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-clutches\"\u003eScooter Clutches \u0026amp; Clutch Springs\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795131330791,"sku":"25-901392","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/rear-clutch-pulley-assembly-for-gy6-50cc-139qmb-4t-1.jpg?v=1791583863"},{"product_id":"47mm-gy6-50cc-139qmb-cylinder-kit","title":"47mm GY6 50cc (139QMB) Cylinder Kit","description":"\u003ch2\u003e47mm Cylinder Kit for 139QMB 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis performance cylinder kit is designed to upgrade your 50cc QMB139 engine to a powerful 72cc. It includes all necessary components for installation, making it a practical choice for those looking to improve their scooter's performance. This product is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can significantly boost acceleration and overall engine response. Keep in mind that modifications to the engine case may be necessary to accommodate the larger cylinder.\u003c\/p\u003e\u003ch3\u003eComponents Included\u003c\/h3\u003e\u003cp\u003eThe kit comes complete with a cylinder, piston, piston rings, piston pin, circlips, a head gasket, and a base gasket. These components work together to ensure reliable performance once installed. Each piece is designed to fit well within the engine, providing a straightforward upgrade path for scooter enthusiasts.\u003c\/p\u003e\u003ch3\u003ePerformance and Specifications\u003c\/h3\u003e\u003cp\u003eThe cylinder features a bore size of 47mm, with a sleeve outer diameter of 52.7mm. The wrist pin diameter measures 13mm, and the total piston height is 34.4mm. Additionally, the compression height from the center of the wrist pin hole to the top edge of the piston is 17.25mm. These specifications ensure that the upgrade yields the desired increase in displacement and performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Bore:\u003c\/strong\u003e 47mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Diameter:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Piston Height:\u003c\/strong\u003e 34.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Height:\u003c\/strong\u003e 17.25mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Cylinder, piston, rings, piston pin, circlips, head gasket, base gasket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis cylinder kit is compatible with 139QMB-based 50cc and 80cc engines. The following engine codes are applicable:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMA\u003c\/li\u003e\n\u003cli\u003e1P39QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMA-2\u003c\/li\u003e\n\u003cli\u003eYN139QMB\u003c\/li\u003e\n\u003cli\u003eJJ1P39QMB\u003c\/li\u003e\n\u003cli\u003e139FMA-2\u003c\/li\u003e\n\u003cli\u003eBD1P39QMB\u003c\/li\u003e\n\u003cli\u003eBN139QMB\u003c\/li\u003e\n\u003cli\u003e147QMD\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-kits\"\u003eScooter Big Bore \u0026amp; Cylinder Kits\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795131494631,"sku":"25-901396","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/47mm-gy6-50cc-139qmb-cylinder-kit-1.jpg?v=1791583864"},{"product_id":"gy6-50cc-139qmb-piaggio-performance-torque-spring-base","title":"GY6 50cc (139QMB)\/Piaggio Performance Torque Spring Base","description":"\u003ch2\u003ePerformance Torque Spring Base for GY6 50cc and Piaggio Engines\u003c\/h2\u003e\u003cp\u003eThe Performance Torque Spring Base is an important component for improving the performance of your GY6 50cc or Piaggio scooter. This part replaces the factory spring seat with a ball-bearing assembly that allows for smooth and consistent shifting. It is designed specifically for the 139QMB engine platform and is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can significantly improve your ride's acceleration and downshifting capabilities.\u003c\/p\u003e\u003ch3\u003eBall-Bearing System for Improved Performance\u003c\/h3\u003e\u003cp\u003eThis upgrade features an anti-binding ball-bearing system that allows the torque spring to rotate freely, reducing friction and mechanical stress. By eliminating spring bind, the base provides faster rear pulley response to throttle inputs, ensuring that your engine remains within its most effective power range during acceleration and deceleration.\u003c\/p\u003e\u003ch3\u003eCompact Design for Versatile Fit\u003c\/h3\u003e\u003cp\u003eWith an overall height of just 30mm, the torque spring base fits effortlessly with both stock and aftermarket torque springs. This low-profile design means no modifications are required to the clutch bell, making it a straightforward addition to your scooter's CVT system.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e NK900.44\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 30mm height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Spring base, ball bearings, hardened bearing race\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequirement:\u003c\/strong\u003e Must be paired with High-Temp Bearing Grease\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis Performance Torque Spring Base is compatible with a variety of 50cc and 80cc scooters, specifically:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGY6 50cc (139QMB): TaoTao, Wolf, Kymco, SYM, Lance, Bintelli\u003c\/li\u003e\n\u003cli\u003ePiaggio 50cc: Vespa ET2\/LX\/S 50, Piaggio Typhoon\/Liberty 50\u003c\/li\u003e\n\u003cli\u003eEuro 2-Stroke: Aprilia SR50, Derbi Bullet\/Atlantis, Gilera Runner\u003c\/li\u003e\n\u003cli\u003eHonda Models: Ruckus (Zoomer), Metro (CHF50) - Verification Recommended\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795131560167,"sku":"25-901407","price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/performance-torque-spring-base-for-gy6-50cc-139qmb-piaggio-1.jpg?v=1791583865"},{"product_id":"gy6-50cc-139qmb-adjustable-drive-sheave","title":"GY6 50cc (139QMB) Adjustable Drive Sheave (Premium)","description":"\u003ch2\u003eAdjustable Drive Sheave for 50cc CSC Scooters\u003c\/h2\u003e\u003cp\u003eThe Adjustable Drive Sheave is designed for 50cc scooters equipped with the 139QMB engine. This component improves acceleration and increases top speed, making it a valuable addition for riders looking to boost their scooter's performance. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can be easily swapped at home, providing noticeable benefits in both speed and torque delivery.\u003c\/p\u003e\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\u003cp\u003eThis drive sheave features a design with more linear slots, which optimizes the torque transfer from the engine to the wheels. By improving the efficiency of power delivery, it helps increase both acceleration and overall top speed. Riders will appreciate the increased responsiveness during their rides, especially in urban settings.\u003c\/p\u003e\u003ch3\u003eInstallation Details\u003c\/h3\u003e\u003cp\u003eThis component includes the rear pulley, bearings, and nut, making it ready for installation right out of the box. If you're installing it on a CSC go model, be aware that clutch slider pins are required for proper fitment. Ensure that you have the necessary tools and follow standard installation protocols for the best results.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 118.7mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 33.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e rear pulley, bearings, nut\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis adjustable drive sheave is compatible with various 50cc and 80cc engines that utilize the 139QMB platform. Below are the specific models it fits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCSC Bella Classic 50\u003c\/li\u003e\n\u003cli\u003eCSC go\u003c\/li\u003e\n\u003cli\u003eCSC go MAX\u003c\/li\u003e\n\u003cli\u003eCSC Nitro Sport 50\u003c\/li\u003e\n\u003cli\u003eCSC Pug 50\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt also fits engines with the following codes: 139QMA, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, and BD1P39QMB. If your engine has a code that starts with \"QM\" or \"FM\", this component is likely suitable for your vehicle.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795131822311,"sku":"25-901415","price":102.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-adjustable-drive-sheave-1.jpg?v=1791583867"},{"product_id":"gy6-50cc-139qmb-80cc-performance-air-filter","title":"GY6 50cc (139QMB)-80cc Performance Air Filter","description":"\u003ch2\u003ePerformance Air Filter for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis performance air filter is specifically designed for 139QMB and GY6 50cc 4-stroke engines, providing improved airflow for better engine operation. Featuring a transparent blue rain and debris shield, it effectively protects the filter element while allowing air to flow freely. This filter is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can contribute to your vehicle's efficiency. The flexible rubber intake boot allows for an adjustable fit, making it compatible with most 50cc carburetor flanges.\u003c\/p\u003e\u003ch3\u003eConstruction and Design\u003c\/h3\u003e\u003cp\u003eThe air filter features a high-flow element encased in a durable blue hard shield that guards against rain and debris. This design ensures that your engine receives clean air, which is critical for performance. The rubber intake boot is equipped with a stainless steel hose clamp, providing a secure attachment to the carburetor.\u003c\/p\u003e\u003ch3\u003eFit and Compatibility\u003c\/h3\u003e\u003cp\u003eThis filter fits various 50cc applications, including scooters, dirt bikes, ATVs, and super pocket bikes. The adjustable intake flange accommodates most carburetor sizes, allowing for straightforward installation across different models.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Flange Inner Diameter:\u003c\/strong\u003e 39–40mm (adjustable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Outer Diameter:\u003c\/strong\u003e 46mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Height:\u003c\/strong\u003e 69mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Outer Diameter:\u003c\/strong\u003e 73mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Blue hard rain\/debris shield, rubber boot, stainless steel clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 139QMB \/ GY6 50cc 4-stroke\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis air filter is suitable for various vehicles equipped with 139QMB and GY6 50cc engines.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMA\u003c\/li\u003e\n\u003cli\u003e1P39QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMA-2\u003c\/li\u003e\n\u003cli\u003eYN139QMB\u003c\/li\u003e\n\u003cli\u003eJJ1P39QMB\u003c\/li\u003e\n\u003cli\u003e139FMA-2\u003c\/li\u003e\n\u003cli\u003eBD1P39QMB\u003c\/li\u003e\n\u003cli\u003eBN139QMB\u003c\/li\u003e\n\u003cli\u003e147QMD\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-air-filters\"\u003eScooter Air Filters\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795132117223,"sku":"25-901382","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/performance-air-filter-for-gy6-50cc-139qmb-80cc-1.jpg?v=1791583869"},{"product_id":"gy6-50cc-139qmb-adjustable-needle-jet-5-clip","title":"GY6 50cc (139QMB) Adjustable Needle Jet 5-Clip","description":"\u003ch2\u003eAdjustable Needle Jet for QMB139 50cc 4-Stroke Scooters\u003c\/h2\u003e\u003cp\u003eThis Adjustable Needle Jet is designed for the QMB139 50cc 4-stroke scooter, providing a reliable solution for replacing worn or damaged components. It features a stainless steel construction, ensuring longevity and effective performance. As one of the key \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, it allows for precise adjustments to the air\/fuel mixture, improving your scooter's efficiency. Whether you're tuning your scooter for better performance or conducting routine maintenance, this part is a smart choice.\u003c\/p\u003e\u003ch3\u003eConstruction and Functionality\u003c\/h3\u003e\u003cp\u003eMade from stainless steel, this needle jet includes a tapered tip and cylindrical body, designed to facilitate smooth airflow and fuel delivery. The five adjustment grooves enable fine-tuning across the throttle range, making it easier to achieve the desired air\/fuel mixture. The C-clip comes pre-installed in the middle groove position, allowing quick adjustments to lean or enrich the mixture.\u003c\/p\u003e\u003ch3\u003eWhen to Replace Your Needle Jet\u003c\/h3\u003e\u003cp\u003eReplacing the needle jet is advisable when you notice performance issues such as poor acceleration, inconsistent idling, or reduced fuel efficiency. Regular maintenance checks can help identify when this part needs attention, especially if you observe wear or damage. Keeping this component in good condition is important for your scooter's overall performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClip Positions:\u003c\/strong\u003e 5 grooves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e C-clip (pre-installed, middle position)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis needle jet is compatible with QMB139-based 50cc and 80cc engines. It fits various engine codes including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMA\u003c\/li\u003e\n\u003cli\u003e139QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMB\u003c\/li\u003e\n\u003cli\u003e1P39QMA-2\u003c\/li\u003e\n\u003cli\u003eYN139QMB\u003c\/li\u003e\n\u003cli\u003eJJ1P39QMB\u003c\/li\u003e\n\u003cli\u003e139FMA-2\u003c\/li\u003e\n\u003cli\u003eBD1P39QMB\u003c\/li\u003e\n\u003cli\u003eBN139QMB\u003c\/li\u003e\n\u003cli\u003e147QMD\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-carburetors\"\u003eScooter Carburetors \u0026amp; Jets\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-hardware\"\u003eScooter Bolts, Screws \u0026amp; Hardware\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795132838119,"sku":"25-901406","price":3.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/adjustable-needle-jet-5-clip-for-gy6-50cc-139qmb-1.jpg?v=1791583875"},{"product_id":"gy6-50cc-139qmb-cylinder-head-kit-for-39-47-50mm","title":"GY6 50cc (139QMB) Cylinder \u0026 Head Kit for 39\/47\/50mm","description":"\u003ch2\u003eGY6 50cc Cylinder and Head Kit for QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis complete cylinder and head kit is designed for QMB139 4-stroke 50cc engines, providing everything necessary for a comprehensive top-end overhaul. Available in three bore sizes—39mm (stock), 47mm (72cc upgrade), and 50mm (81.3cc upgrade)—this kit is an integral part of routine maintenance or performance improvement. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can significantly boost engine performance when replaced correctly.\u003c\/p\u003e\u003ch3\u003eComponents Included\u003c\/h3\u003e\u003cp\u003eThe kit comes fully equipped with a cylinder head, cylinder, piston, piston rings, piston pin, retaining clips, head gasket, and base gasket. Each component is designed to ensure a proper fit and function within the QMB139 engine platform. For larger bore sizes, modifications to the engine case may be required to accommodate the new cylinder dimensions.\u003c\/p\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eReplacing the cylinder and head is a common maintenance task for scooter enthusiasts and can be performed at home with the right tools. Ensure to follow the proper installation procedures to avoid any potential engine issues. It’s ideal for those looking to improve their scooter's performance or replace worn-out components.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Bore:\u003c\/strong\u003e 39mm (stock), 47mm (72cc upgrade), 50mm (81.3cc upgrade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Sleeve OD:\u003c\/strong\u003e 45mm (39mm), 52.8mm (47mm), 53.95mm (50mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Diameter:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Piston Height:\u003c\/strong\u003e 34.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Height:\u003c\/strong\u003e 17.25mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake and Exhaust Valve Length:\u003c\/strong\u003e 64mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Non-emissions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis kit is compatible with QMB139 (139QMB) 49cc \/ 50cc 4-stroke engines, making it suitable for various scooter models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine Buddy 50\u003c\/li\u003e\n\u003cli\u003eRoughHouse 50\u003c\/li\u003e\n\u003cli\u003eRattler 50\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"50","offer_id":52795133755623,"sku":"25-901497","price":82.0,"currency_code":"USD","in_stock":true},{"title":"47","offer_id":52795133788391,"sku":"25-901498","price":82.0,"currency_code":"USD","in_stock":true},{"title":"39","offer_id":52795133821159,"sku":"25-901499","price":82.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-cylinder-head-kit-for-39-47-50mm-1.webp?v=1791583881"},{"product_id":"3-pin-audible-turn-signal-relay-for-gy6-qmb","title":"3-Pin Audible Turn Signal Relay for GY6 \u0026 QMB","description":"\u003ch2\u003e3-Pin Audible Turn Signal Relay for GY6 and QMB Scooters\u003c\/h2\u003e\u003cp\u003eThe 3-pin audible turn signal relay is an important component for GY6 125cc\/150cc and QMB139 50cc scooters. This relay not only provides a visual signal but also emits an audible beep in sync with the turn indicators, making it particularly useful in noisy environments or when wearing full-face helmets. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can easily be replaced without hassle.\u003c\/p\u003e\u003ch3\u003eRelay Functionality\u003c\/h3\u003e\u003cp\u003eThis relay functions as a flasher unit that improves safety by alerting the rider and surrounding traffic of directional changes. Featuring a thermal\/electronic hybrid design, it is specifically designed for use with traditional incandescent lighting. Should you opt for LED turn signals and notice rapid blinking, you may need to consider an LED-specific relay or additional load resistors.\u003c\/p\u003e\u003ch3\u003eInstallation and Compatibility\u003c\/h3\u003e\u003cp\u003eThe relay comes with a 3-pin male connector that is compatible with typical 3-wire configurations, making installation straightforward. It is designed for plug-and-play use in various scooters with a GY6 or QMB139 engine. The included rubber mounting sleeve helps reduce vibration, ensuring proper function while riding.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e Up to 3A \/ 150W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e 3-pin male connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Rubber mounting sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis relay is suitable for a variety of scooters equipped with a GY6 or QMB139 engine, specifically those with a common 3-pin turn signal connection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTaoTao\u003c\/li\u003e\n\u003cli\u003eWolf\u003c\/li\u003e\n\u003cli\u003eBintelli\u003c\/li\u003e\n\u003cli\u003eIce Bear\u003c\/li\u003e\n\u003cli\u003eZNEN\u003c\/li\u003e\n\u003cli\u003eLance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-starters-relays\"\u003eScooter Starters \u0026amp; Relays\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-lights\"\u003eScooter Lights \u0026amp; Bulbs\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795134738663,"sku":"25-901438","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/3-pin-audible-turn-signal-relay-for-gy6-qmb-1.webp?v=1791583885"},{"product_id":"gy6-50cc-139qmb-long-case-cvt-cover-gasket","title":"GY6 50cc (139QMB) Long Case CVT Cover Gasket","description":"\u003ch2\u003eCVT Cover Gasket for Long Case 139QMB Engines\u003c\/h2\u003e\u003cp\u003eThis CVT Cover Gasket is designed for the long case 50cc and 80cc 4-stroke engines, specifically the 139QMB platform. It ensures a proper seal between the engine case and the transmission housing, safeguarding your drivetrain from dirt and moisture. Like most \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, this gasket should be replaced whenever the CVT is accessed for maintenance, protecting against premature wear caused by contaminants.\u003c\/p\u003e\u003ch3\u003eLong Case Compatibility\u003c\/h3\u003e\u003cp\u003eMeasuring 17 inches in length, this gasket fits the long case version of the 139QMB engine typically found in scooters equipped with 12\" or 13\" rear wheels. Its 10-bolt pattern is precisely punched to align with factory mounting points, creating a reliable seal during installation.\u003c\/p\u003e\u003ch3\u003eMaterial and Function\u003c\/h3\u003e\u003cp\u003eConstructed from oil-resistant composite material, this gasket compresses upon installation to fill minor imperfections in the surface, ensuring a tight fit. It serves as an effective barrier against dust, moisture, and road grime, thereby extending the lifespan of your variator, rollers, and transmission components.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Oil-Resistant Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 17 inches length, 7 inches widest point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt Hole Count:\u003c\/strong\u003e 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 139QMB \/ 1P39QMB (Long Case only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 50cc and 80cc 4-stroke scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis gasket is compatible with long case 139QMB-based engines, including engine codes such as 139QMB, 1P39QMB, and several others. It fits a variety of Chinese scooter brands that utilize the long case engine platform.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTaoTao\u003c\/li\u003e\n\u003cli\u003eRoketa\u003c\/li\u003e\n\u003cli\u003eWolf\u003c\/li\u003e\n\u003cli\u003eBintelli\u003c\/li\u003e\n\u003cli\u003eZNEN\u003c\/li\u003e\n\u003cli\u003eJonway\u003c\/li\u003e\n\u003cli\u003eKeeway\u003c\/li\u003e\n\u003cli\u003eVento\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-accessories\"\u003eScooter Accessories\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795136213223,"sku":"25-901474","price":3.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-long-case-cvt-cover-gasket-1.png?v=1791583896"},{"product_id":"gy6-50cc-139qmb-woodruff-key","title":"GY6 50cc (139QMB) Woodruff Key","description":"\u003ch2\u003eWoodruff Key for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis Woodruff Key is designed specifically for 50cc 4-stroke QMB139 engines, providing a reliable solution for securing your scooter's electrics and locks. It ensures proper alignment for switches and locks, contributing to effective operation. This part matches the connector and wire count needed for your setup, making it important for maintaining your scooter's performance. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can help restore functionality and safety in your electrical system.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe Woodruff Key plays a significant role in the electrical system of your scooter, keeping switches and locks aligned for dependable performance. If your scooter's electrics are malfunctioning, replacing this key can restore proper security and operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 12.9mm x 3mm x 2.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 50cc 4-stroke QMB139 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis Woodruff Key is compatible with various scooters equipped with the QMB139 engine.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eQMB139 50cc\/49cc\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-switches-controls\"\u003eScooter Switches \u0026amp; Controls\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795138244839,"sku":"25-901630","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/woodruff-key-for-gy6-50cc-139qmb-1.jpg?v=1791583910"},{"product_id":"gy6-50cc-139qmb-engines-oem-rear-muffler","title":"GY6 50cc (139QMB) Engines OEM Rear Muffler","description":"\u003ch2\u003eOEM Rear Muffler for 50cc 4-Stroke Scooters\u003c\/h2\u003e\u003cp\u003eThe OEM Rear Muffler is designed specifically for 50cc scooters equipped with the 139QMB engine. This part plays a key role in managing exhaust flow, which impacts engine performance and sound. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can significantly improve your ride when replacing a worn or damaged muffler. Ensure compatibility with your frame and engine for proper installation.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThis muffler affects your scooter's exhaust efficiency, which in turn influences engine power and sound output. If you notice a rusted or blown exhaust, replacing it can restore performance, while an upgrade might require a re-jet to maximize benefits.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Diameter:\u003c\/strong\u003e 112.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 50cc\/49cc scooters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis muffler is compatible with 50cc scooters that utilize the QMB139 engine.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVarious makes\/models\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-exhausts\"\u003eScooter Exhausts \u0026amp; Mufflers\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-engines\"\u003eScooter Engines \u0026amp; Engine Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795140079847,"sku":"25-901684","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/oem-rear-muffler-for-gy6-50cc-139qmb-engines-1.webp?v=1791583925"},{"product_id":"seat-lock-cable-for-universal-50cc-139qmb-gy6-50cc-scooters","title":"Seat Lock Cable for Universal \u0026 50cc (139QMB) GY6 50cc Scooters","description":"\u003ch2\u003eSeat Lock Cable for 139QMB and GY6 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis replacement seat lock cable is designed for 139QMB and GY6 scooters, restoring functionality to your storage compartment under the seat. If your seat won't open or the release lever is unresponsive, this cable is a practical solution. It is one of the necessary \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e to maintain smooth functionality. Forget about dealing with a broken latch; this cable gets you back on the road quickly.\u003c\/p\u003e\u003ch3\u003eUniversal Compatibility\u003c\/h3\u003e\u003cp\u003eThis seat lock cable is engineered to fit a variety of GY6 and 139QMB scooters. It serves as a dependable replacement for many standard models manufactured in China. Whether you're working on a sport-style scooter or a casual ride, this cable will meet your needs.\u003c\/p\u003e\u003ch3\u003eWeather-Resistant Design\u003c\/h3\u003e\u003cp\u003eThis cable features an outer sleeve that protects the inner components from rust and binding. This design ensures you can rely on smooth operation over time. The cable includes standard barrel-end fittings, allowing for straightforward adjustments for proper tension.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 139QMB \/ GY6 Engines, 50cc–150cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Universal barrel-end cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Length:\u003c\/strong\u003e Approx. 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Diameter:\u003c\/strong\u003e Approx. 4.75mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e Approx. 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e (1) Seat Lock Cable Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis cable is compatible with various models of 139QMB \/ GY6 scooters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTank Urban 50\u003c\/li\u003e\n\u003cli\u003eRoketa Maui MC-08-50\u003c\/li\u003e\n\u003cli\u003eSunl SL50QT-7 Sporty\u003c\/li\u003e\n\u003cli\u003eDazon Diamondback\u003c\/li\u003e\n\u003cli\u003eTaoTao CY50-T3 \/ Funny 50 \/ Speedy 50\u003c\/li\u003e\n\u003cli\u003eLance GTR 50\u003c\/li\u003e\n\u003cli\u003eBaja SC50\u003c\/li\u003e\n\u003cli\u003eJonway Beta 50 \/ QT-6\u003c\/li\u003e\n\u003cli\u003eJMstar Breeze\u003c\/li\u003e\n\u003cli\u003eLongbo LB50QT-6\u003c\/li\u003e\n\u003cli\u003eMoto Fino MF50QT\u003c\/li\u003e\n\u003cli\u003eGator Imports Eagle 49cc\u003c\/li\u003e\n\u003cli\u003eExcalibur Vanguard 50\u003c\/li\u003e\n\u003cli\u003eBaccio SPD 50cc\u003c\/li\u003e\n\u003cli\u003eBaotian BTM-BT49QT\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cables\"\u003eScooter Cables \u0026amp; Throttles\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-switches-controls\"\u003eScooter Switches \u0026amp; Controls\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795141423335,"sku":"25-901722","price":3.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/seat-lock-cable-for-universal-50cc-139qmb-gy6-50cc-scooters-1.jpg?v=1791583935"},{"product_id":"gy6-50cc-139qmb-oil-pump-sprocket-47-teeth","title":"GY6 50cc (139QMB) Oil Pump Sprocket - 47 Teeth","description":"\u003ch2\u003eGY6 50cc Oil Pump Sprocket for 4-Stroke Engines\u003c\/h2\u003e\u003cp\u003eThis oil pump sprocket features 47 teeth and is designed specifically for 50cc 4-stroke QMB139 engines. It plays an important role in ensuring proper oil flow to the engine, which helps maintain performance. Replacing this component is necessary when the chain becomes elongated or the teeth show signs of damage. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can help keep your scooter operating efficiently.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eChains and sprockets are important in transmitting power to the rear drive of chain-driven scooters, small motorcycles, and pocket bikes. When the oil pump sprocket wears out, it can impact the overall performance of the engine, making timely replacement important for reliable operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Teeth:\u003c\/strong\u003e 47\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 73mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 50cc\/49cc engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis oil pump sprocket is compatible with various makes and models that utilize the QMB139 engine.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-chains-sprockets\"\u003eScooter Chains \u0026amp; Sprockets\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-oil-maintenance\"\u003eScooter Oil \u0026amp; Maintenance\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143127271,"sku":"25-901788","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-oil-pump-sprocket-47-teeth-1.jpg?v=1791583949"},{"product_id":"gy6-50cc-139qmb-intake-valve-69mm-for-50cc-4-stroke","title":"GY6 50cc (139QMB) Intake Valve 69mm for 50cc 4-Stroke","description":"\u003ch2\u003eReplacement Intake Valve for QMB139 50cc Scooters\u003c\/h2\u003e\u003cp\u003eThis intake valve is designed to replace the worn or damaged component in your QMB139-powered 50cc scooter. With an overall length of 69mm, a head diameter of 18.5mm, and a shaft diameter of 5mm, it meets the factory specifications for standard 49cc\/50cc 4-stroke horizontal engines. It is one of the important \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e for maintaining proper engine performance and ensuring efficient operation.\u003c\/p\u003e\u003ch3\u003eFunctionality and Installation\u003c\/h3\u003e\u003cp\u003eThe intake valve is responsible for permitting the air and fuel mixture to enter the engine's combustion chamber. Over time, this part can deteriorate, leading to issues such as reduced performance or engine misfires. Replacing the valve is a manageable task for those familiar with basic scooter maintenance, enabling the engine to run smoothly and effectively once again.\u003c\/p\u003e\u003ch3\u003eWhen to Replace Your Intake Valve\u003c\/h3\u003e\u003cp\u003eIndicators of a failing intake valve may include poor acceleration, unusual engine noise, or difficulty starting your scooter. If you notice any of these symptoms, it may be time to inspect and replace the valve to restore your engine's efficiency. Regular maintenance checks can help prevent unexpected breakdowns and keep your scooter operating reliably.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Intake Valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter:\u003c\/strong\u003e 18.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 69mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e QMB139 49cc\/50cc 4-stroke horizontal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis intake valve is specifically compatible with the QMB139 49cc\/50cc 4-stroke horizontal engine. It fits various makes and models utilizing the QMB139 engine platform, making it a versatile choice for your repair needs.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-fuel-system\"\u003eScooter Fuel System Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143258343,"sku":"25-901792","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-intake-valve-69mm-for-50cc-4-stroke-1.jpg?v=1791583950"},{"product_id":"gy6-50cc-139qmb-sunny-scooter-speedometer-assembly","title":"GY6 50cc (139QMB) Sunny Scooter Speedometer Assembly","description":"\u003ch2\u003eSpeedometer Assembly for 50cc Sunny Scooters\u003c\/h2\u003e\u003cp\u003eThis Speedometer Assembly is designed for QMB139 50cc Sunny-style scooters. It's ideal for replacing a broken or malfunctioning gauge cluster. This part is one of the key \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that ensure accurate speed and fuel readings. With its chrome-trimmed design and clear analog displays, it offers both functionality and style.\u003c\/p\u003e\u003ch3\u003eConstruction Details\u003c\/h3\u003e\u003cp\u003eThe assembly features a gray plastic housing with chrome trim, shaped in a trapezoidal form. It includes four mounting tabs for secure installation. The front face presents an analog speedometer capable of measuring up to 80 mph, along with an analog fuel gauge that indicates levels from empty to full.\u003c\/p\u003e\u003ch3\u003eIndicator Lights and Backlighting\u003c\/h3\u003e\u003cp\u003eOn the right side, you’ll find indicator lights for turn signals and high beams, along with an additional blue indicator dot. The rear of the unit contains three sockets for bulbs that provide backlighting. This ensures that critical readings are visible, even in low-light conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing:\u003c\/strong\u003e Gray plastic with chrome trim, trapezoidal shape, 4 mounting tabs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeedometer:\u003c\/strong\u003e Analog, 0–80 mph outer scale \/ km\/h inner scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdometer:\u003c\/strong\u003e 5-digit mechanical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Gauge:\u003c\/strong\u003e Analog E–F with fuel pump icon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicators:\u003c\/strong\u003e Turn signal arrows, green high beam, blue indicator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacklighting:\u003c\/strong\u003e 3 bulb sockets (rear-mount)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeedo Drive:\u003c\/strong\u003e Mechanical cable port (center rear)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e 3-pin white plug (black, yellow, blue wires) with spade terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9\" L x 6\" W x 5\" H\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis speedometer assembly is compatible with QMB139 50cc Chinese scooters featuring a Sunny-style instrument cluster.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eQMB139 50cc Sunny Scooters\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gauges\"\u003eScooter Speedometers \u0026amp; Gauges\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143323879,"sku":"25-901709","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/speedometer-assembly-for-gy6-50cc-139qmb-sunny-scooters-1.jpg?v=1791583950"},{"product_id":"gy6-50cc-139qmb-drive-face-gear","title":"GY6 50cc (139QMB) Drive Face Gear","description":"\u003ch2\u003eDrive Face Gear for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis drive face gear is designed specifically for 50cc 4-stroke QMB139 engines and compatible scooters. It plays an important role in transferring power through the transmission, ensuring smooth operation. If you notice grinding noises, slipping under load, or worn splines, it may be time to replace this component. It is one of the key \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e to keep your ride in good condition.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe drive face gear is integral to the scooter's final drive system, working alongside torque drivers to facilitate power transfer. Replacing worn parts is necessary to maintain performance and prevent further transmission damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 4 ½ inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplines:\u003c\/strong\u003e 26\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis drive face gear fits various scooters with GY6 50cc engines, specifically the QMB139 model.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBaja\u003c\/li\u003e\n\u003cli\u003eKymco\u003c\/li\u003e\n\u003cli\u003ePanterra\u003c\/li\u003e\n\u003cli\u003eRoketa\u003c\/li\u003e\n\u003cli\u003eSUNL\u003c\/li\u003e\n\u003cli\u003eSchwinn\u003c\/li\u003e\n\u003cli\u003eTank\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-transmission\"\u003eScooter Transmission \u0026amp; Final Drive\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143422183,"sku":"25-901796","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-drive-face-gear-1.jpg?v=1791583951"},{"product_id":"gy6-50cc-139qmb-69mm-valve-rebuild-kit","title":"GY6 50cc (139QMB) 69mm Valve Rebuild Kit","description":"\u003ch2\u003eValve Rebuild Kit for GY6 50cc (139QMB) Engines\u003c\/h2\u003e\u003cp\u003eThis valve rebuild kit is specifically designed for 50cc 4-stroke QMB139 engines. It provides all the necessary components for a complete valve assembly, helping to improve performance and reliability. As one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e available, this kit is important for maintaining engine function, allowing for better compression and efficiency in your scooter's engine. Regular replacement of these components can prevent more serious engine problems and ensure smooth operation.\u003c\/p\u003e\u003ch3\u003eComponents Included\u003c\/h3\u003e\u003cp\u003eThe kit includes a complete set of items, such as intake and exhaust valves, a pair of valve springs, valve washers, seals, retainers, and keepers. Each part serves a specific function in the engine's operation, allowing precise control of air and fuel flow, which is necessary for effective combustion and engine performance.\u003c\/p\u003e\u003ch3\u003eWhen to Consider Replacement\u003c\/h3\u003e\u003cp\u003eConsider replacing these valve components when you notice signs of reduced power, unusual engine noise, or diminished performance. By regularly maintaining these components, you can help prevent more significant problems in the future and maintain the efficiency of your scooter.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e 69mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve Diameter:\u003c\/strong\u003e 18.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve Diameter:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis valve rebuild kit is compatible with GY6 50cc\/49cc engine models, making it suitable for various scooter applications.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143553255,"sku":"25-901800","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-69mm-valve-rebuild-kit-1.webp?v=1791583952"},{"product_id":"gy6-50cc-139qmb-19mm-carburetor-diaphragm","title":"GY6 50cc (139QMB) 19mm Carburetor Diaphragm","description":"\u003ch2\u003e19mm Carburetor Diaphragm for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis carburetor diaphragm is designed for use with 19mm gold top carburetors, specifically in GY6 50cc engines. It ensures a proper air-fuel mixture for efficient engine performance, making it important for maintaining your scooter. If you experience issues like hard starting or poor idling, replacing the diaphragm can help restore functionality. It is one of the straightforward \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e to replace during maintenance.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe carburetor diaphragm plays a key role in mixing air and fuel for your engine's combustion process. If you notice symptoms such as bogging or surging, it may be time to replace a dirty or worn diaphragm to improve your engine's reliability.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 19mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter of Slide:\u003c\/strong\u003e 16.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter of Rubber:\u003c\/strong\u003e 52.1mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GY6 50cc (139QMB) Engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis diaphragm is compatible with various GY6 50cc engines, particularly those utilizing the 19mm gold top carburetor.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQMB139 50cc\u003c\/li\u003e\n\u003cli\u003e49cc Engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-carburetors\"\u003eScooter Carburetors \u0026amp; Jets\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143717095,"sku":"25-901804","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-19mm-carburetor-diaphragm-1.jpg?v=1791583954"},{"product_id":"gy6-50cc-139qmb-transmission-bearing-seal-kit","title":"GY6 50cc (139QMB) Transmission Bearing \u0026 Seal Kit","description":"\u003ch2\u003eTransmission Bearing and Seal Kit for QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis comprehensive transmission bearing and seal kit is designed for 50cc QMB139 engines, offering all necessary components for a complete gearbox rebuild. It ensures smooth and dependable power delivery, making it a smart choice for maintaining engine performance. This kit is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can simplify your repair process by including every required part in one package, eliminating the need to search for individual items. Whether you're a seasoned mechanic or a DIY enthusiast, this kit provides everything you need for a successful transmission rebuild.\u003c\/p\u003e\u003ch3\u003eComponents Included\u003c\/h3\u003e\u003cp\u003eThe kit consists of a variety of bearings, seals, and gaskets that are important for a successful transmission rebuild. You will receive one each of the 6303, 6203, and 6004 RS bearings, along with three 6201 bearings. Additionally, it includes two oil seals (17×30×6 and 27×42×7) and a gearbox gasket to ensure a complete assembly. With all these components, you can restore the functionality of your gearbox efficiently and effectively.\u003c\/p\u003e\u003ch3\u003eWhen to Replace Transmission Components\u003c\/h3\u003e\u003cp\u003eRegular maintenance of your transmission components is necessary to ensure reliable performance. Signs of wear, such as unusual noises or difficulties in power delivery, may indicate the need for replacement. By using this kit, you can address these issues promptly and maintain the dependability of your engine’s performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 50cc \/ 49cc engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis kit is specifically compatible with QMB139 50cc and 49cc engines, suitable for various makes and models that utilize QMB139-style transmissions.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVarious makes and models\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-transmission\"\u003eScooter Transmission \u0026amp; Final Drive\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143815399,"sku":"25-901786","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-transmission-bearing-seal-kit-1.jpg?v=1791583954"},{"product_id":"gy6-50cc-139qmb-non-emissions-valve-cover","title":"GY6 50cc (139QMB) Non-Emissions Valve Cover","description":"\u003ch2\u003eNon-Emissions Valve Cover for 50cc 4-Stroke Engines\u003c\/h2\u003e\u003cp\u003eThis non-emissions valve cover is specifically designed for 50cc 4-stroke engines, particularly the QMB139 model. It plays a critical role in controlling how your engine breathes, influencing performance and efficiency. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can help improve engine function when dealing with low compression or valve issues. Note that this part does not come with a valve cover gasket, which can be found in related items.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eIf you notice ticking noises or signs of burnt valves, it may be time to replace the valve cover. Ensuring the cylinder head matches your engine's specifications is important for maintaining performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 50cc\/49cc engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis valve cover is compatible with 50cc 4-stroke QMB139 engines.\u003c\/p\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-accessories\"\u003eScooter Accessories\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795143979239,"sku":"25-901790","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-non-emissions-valve-cover-1.jpg?v=1791583955"},{"product_id":"gy6-50cc-139qmb-exhaust-valve-69mm","title":"GY6 50cc (139QMB) Exhaust Valve - 69mm","description":"\u003ch2\u003eExhaust Valve for 50cc QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis exhaust valve is specifically designed for 50cc 4-stroke QMB139 engines. It measures 69mm in overall length, with a diameter of 16mm and a shaft diameter of 5mm. As one of the necessary \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, it plays a key role in ensuring your engine breathes properly. Replacing this valve may be necessary if you experience low compression or valve-related issues.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eIf your engine is showing signs of low compression, ticking sounds, or burnt valves, it's time to consider replacing the exhaust valve. Ensuring the cylinder head matches your engine code and bore size is important for maintaining performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 69mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis exhaust valve fits various models of 50cc and 49cc engines, specifically designed for QMB139 configurations.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQMB139 50cc\u003c\/li\u003e\n\u003cli\u003eQMB139 49cc\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-exhausts\"\u003eScooter Exhausts \u0026amp; Mufflers\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795144143079,"sku":"25-901794","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-exhaust-valve-69mm-1.jpg?v=1791583956"},{"product_id":"gy6-50cc-139qmb-cvt-cover-with-kick-start-short-case","title":"GY6 50cc (139QMB) CVT Cover with Kick Start - Short Case","description":"\u003ch2\u003eCVT Cover for GY6 50cc Short-Case Engines\u003c\/h2\u003e\u003cp\u003eThis CVT cover is designed specifically for the short-case GY6 50cc engines, particularly the 139QMB and QMB139 models. If your current cover is cracked or damaged, this replacement is important for maintaining the functionality of your scooter. It is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that can be easily swapped out at home, ensuring your ride remains reliable and operational.\u003c\/p\u003e\u003ch3\u003eKick Start Mechanism Included\u003c\/h3\u003e\u003cp\u003eThis cover comes with a pre-installed kick start mechanism, which includes the starter gear system, pivot arm, and associated components. This feature saves you the hassle of separate assembly, allowing for a straightforward installation process. The kit also includes a serrated kick start lever, providing you with everything needed to get your scooter back on the road.\u003c\/p\u003e\u003ch3\u003eShort Case Design\u003c\/h3\u003e\u003cp\u003eEngineered for short-case 139QMB engines, this cover has the correct length and a 10-hole mounting pattern. The design ensures a proper fit, making it a reliable choice when replacing a damaged cover. Additionally, it features a built-in port for the breather tube to facilitate engine ventilation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 139QMB \/ QMB139 50cc 4-stroke short case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 15.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Mounting Holes:\u003c\/strong\u003e 10 (8 bolt holes + 2 dowel holes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e CVT cover with pre-installed kick start mechanism + kick start lever\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis CVT cover is compatible with various scooters that utilize the short-case GY6 50cc engines.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTaoTao\u003c\/li\u003e\n\u003cli\u003eWolf\u003c\/li\u003e\n\u003cli\u003eIce Bear\u003c\/li\u003e\n\u003cli\u003eBintelli\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-starters-relays\"\u003eScooter Starters \u0026amp; Relays\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-accessories\"\u003eScooter Accessories\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795144274151,"sku":"25-901798","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-cvt-cover-w-kick-start-short-case-1.jpg?v=1791583957"},{"product_id":"gy6-50cc-139qmb-rocker-arms-for-69mm-length-valve","title":"GY6 50cc (139QMB) Rocker Arms for 69mm Length Valve","description":"\u003ch2\u003eRocker Arms for 50cc 4-Stroke Engines\u003c\/h2\u003e\u003cp\u003eThis set of rocker arms is designed for use with cylinder heads featuring 69mm valves on 50cc QMB139 4-stroke engines. They are important for maintaining engine performance by ensuring proper valve operation. This part is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e that help address issues like low compression or ticking sounds. Replacing worn rocker arms can improve engine breathing and prevent further damage.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eRocker arms should be replaced when you notice symptoms such as ticking noises, low compression, or burnt valves. These issues indicate that head work may be necessary to restore proper engine function. Confirm compatibility with your cylinder head’s bore size and engine code before replacement.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 55.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Heads with 69mm Valves\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis part fits various 50cc models, specifically those with the QMB139 engine.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBaja SC50\u003c\/li\u003e\n\u003cli\u003eKymco\u003c\/li\u003e\n\u003cli\u003ePanterra\u003c\/li\u003e\n\u003cli\u003eQingqi\u003c\/li\u003e\n\u003cli\u003eRoketa\u003c\/li\u003e\n\u003cli\u003eSUNL\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795144634599,"sku":"25-901787","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-rocker-arms-for-69mm-length-valve-1.jpg?v=1791583961"},{"product_id":"gy6-50cc-139qmb-exhaust-valve-64mm","title":"GY6 50cc (139QMB) Exhaust Valve - 64mm","description":"\u003ch2\u003e64mm Exhaust Valve for 50cc QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis exhaust valve is specifically made for 50cc 4-stroke QMB139 engines, helping to improve engine performance and efficiency. It is a key component that influences how well your engine breathes. If you notice signs like low compression or ticking noises, replacing this part may be necessary. This valve is one of the important \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e for maintaining your engine's health.\u003c\/p\u003e\u003ch3\u003eWhen to Replace It\u003c\/h3\u003e\u003cp\u003eSigns of wear such as ticking noises or burnt valves indicate that it's time for a replacement. Proper maintenance of the cylinder head, valves, and camshaft is important for your engine's performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Diameter:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 64mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis exhaust valve is compatible with QMB139 50cc and 49cc engines.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVarious makes\/models\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-exhausts\"\u003eScooter Exhausts \u0026amp; Mufflers\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795144765671,"sku":"25-901795","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/gy6-50cc-139qmb-exhaust-valve-64mm-1.jpg?v=1791583961"}],"url":"https:\/\/www.magiccars.com\/collections\/gy6-50cc-parts.oembed","provider":"MagicCars","version":"1.0","type":"link"}