High Performance Racing ENGINE Ki t. 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 "Big Bore Racin 50cc 49cc 2 stroke Engine Motor Scooter Pocket Quad Dirt Bike ATV" is in sale since Tuesday, April 6, 2021. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Complete Engines". The seller is "2011motorparts" and is located in Dallas, Texas. This item can be shipped worldwide.