{"product_id":"minarelli-41-4mm-stuffer-crankshaft","title":"Minarelli 41.4mm Stuffer Crankshaft","description":"\u003ch2\u003e41.4mm Stuffer Crankshaft for Minarelli 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis performance crankshaft is designed specifically for Minarelli 50cc, 2-stroke engines, featuring a 10mm wrist pin. With a 41.4mm stroke that offers an increase of 2.2mm, this stuffer crankshaft boosts primary compression, which is beneficial for engines that operate at higher RPMs. It is one of the \u003ca href=\"\/collections\/minarelli-50cc-parts\"\u003eMinarelli 50cc \/ Yamaha jog scooter parts\u003c\/a\u003e that can improve your engine's performance by optimizing airflow and combustion efficiency.\u003c\/p\u003e\u003ch3\u003eIncreased Primary Compression\u003c\/h3\u003e\u003cp\u003eThe crankshaft is equipped with additional plastic padding that raises primary compression, making it suitable for racing and high-performance applications. Its overall length measures 9 ½ inches, making it a direct replacement for your existing crankshaft. With 17 splines, this part ensures a secure fit within your engine.\u003c\/p\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eInstallation of this crankshaft is straightforward for those familiar with engine work. The flywheel and drive end both have a thread size of M10x1.25, ensuring compatibility with standard components. The inner diameter of the piston pin hole measures 14mm, allowing for a precise fit with the piston assembly.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 41.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 9 ½ inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplines:\u003c\/strong\u003e 17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Thread Size:\u003c\/strong\u003e M10x1.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive End Thread Size:\u003c\/strong\u003e M10x1.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter of Piston Pin Hole:\u003c\/strong\u003e 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 40QMB 50cc 2-stroke engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis crankshaft is compatible with Minarelli 50cc engines and is commonly used in various scooter models. \u003c\/p\u003e\u003cul\u003e\u003cli\u003eMinarelli 50cc\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\/minarelli-50cc-parts\"\u003eMinarelli 50cc \/ Yamaha Jog Parts\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":52795174486247,"sku":"25-902668","price":186.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/minarelli-41-4mm-stuffer-crankshaft-1.jpg?v=1791584183","url":"https:\/\/www.magiccars.com\/products\/minarelli-41-4mm-stuffer-crankshaft","provider":"MagicCars","version":"1.0","type":"link"}