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. The item "Racing Big Bore 2 Stroke 47 49cc Engine Motor Exhaust Kit Quad ATV Scooter Bike" is in sale since Monday, November 9, 2020. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Other Motorcycle Parts". The seller is "tdpro99" and is located in Dallas, Texas. This item can be shipped worldwide.