{"product_id":"cvk-main-jet-142-for-scooters-mopeds","title":"Cvk Main Jet (# 142) for Scooters \u0026 Mopeds","description":"\u003ch2\u003eCvk Main Jet (#142) for 139QMB and GY6 Scooters\u003c\/h2\u003e\u003cp\u003eThe Cvk Main Jet (#142) is designed for use with 139QMB and GY6 engine scooters and mopeds. This main jet fits most CVK carburetors that accommodate a 5mm main jet, making it a versatile choice for your ride. As one of the key \u003ca href=\"\/collections\/scooter-carburetors\"\u003escooter carburetors \u0026amp; jets\u003c\/a\u003e, it plays a significant role in optimizing engine performance. Achieving the right jetting may require some adjustments, and additional resources are available for guidance.\u003c\/p\u003e\u003ch3\u003eCompatibility and Performance\u003c\/h3\u003e\u003cp\u003eThis main jet is compatible with a range of 50cc, 125cc, 150cc, and 169cc engines. It's suitable for various engine codes, ensuring a wide application across different models. The jetting process is often a matter of trial and error, so be prepared to experiment for best results.\u003c\/p\u003e\u003ch3\u003eConstruction Details\u003c\/h3\u003e\u003cp\u003eManufactured to meet strict quality standards, this main jet features a Keihin round-style design. It has a thread size of M5x0.80 and an overall length of 8mm. Such specifications ensure that it fits snugly into the designated carburetor slot, improving fuel flow and combustion efficiency.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Main Jet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M5x0.80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 8mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis main jet is compatible with several engine types, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMB-based engines\u003c\/li\u003e\n\u003cli\u003e157QMJ-based 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\/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":52800352878823,"sku":"25-914488","price":3.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/cvk-main-jet-142-1.jpg?v=1791665689","url":"https:\/\/www.magiccars.com\/products\/cvk-main-jet-142-for-scooters-mopeds","provider":"MagicCars","version":"1.0","type":"link"}