{"product_id":"70cc-cast-iron-sport-cylinder-kit","title":"70cc Cast Iron Sport Cylinder Kit","description":"Transform your 50cc scooter into a high-torque street machine with the Malossi 70cc Cast Iron Sport Cylinder Kit. The kit features a wear-resistant cast iron bore, optimized port architecture for improved scavenging, a high-compression aluminum cylinder head, and a low-friction dual-ring piston.\n\nThis cylinder kit is specifically engineered for horizontal, air-cooled (AC) 2-stroke Minarelli and Minarelli-clone engine blocks that use a 10mm wrist pin. It is compatible with models such as the Genuine Buddy 50\/RoughHouse 50, Genuine Rattler 50\/Black Cat 50, Yamaha Zuma 50 (2002-2011 \"Bugeye\"), Yamaha Vino 50 2T\/Jog 50 (Horizontal), and Aprilia\/Malaguti Scarabeo 50 2T\/F-10\/Yesterday. A critical fitment warning is in place: this kit includes a 10mm wrist pin piston. Always measure your crankshaft's small-end needle bearing layout before ordering, as some vintage European models or custom aftermarket cranks may use a 12mm wrist pin.\n\nRunning this 70cc kit requires immediate fuel calibration. You must up-jet your factory carburetor (typically by 10-15%) or upgrade to a larger carburetor to prevent the engine from running lean and potentially seizing. This product is intended for off-road and racing use only and may not be legal for use on pollution-controlled vehicles or public roads.","brand":"Malossi","offers":[{"title":"Default Title","offer_id":52688999612728,"sku":"317083","price":185.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687438401.jpg?v=1784900134","url":"https:\/\/store.motormia.co\/products\/70cc-cast-iron-sport-cylinder-kit","provider":"MOTORMIA","version":"1.0","type":"link"}