High Performance Racing ENGINE Kit (25:1). 6 tooth 25h sprocket with 3rd bearing support. Complete Performance 49cc Mini Moto Quadard Engine Upgrade FEATURES. 49cc single cylinder, air-cooled, 2-stroke.Performance flat slide carburetor, Heavy duty clutch, Alloy pull starter and HP carby kit. 49cc engine with anodized alloy head. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Complete Engines". The seller is "tdpro99" and is located in this country: US. This item can be shipped worldwide.