49cc/52cc size engine 2-stroke Includes transmission with 8 mm 05T chain sprocket Pre-assembled with muffler, carburetor, air filter and more Complete 49cc scooter engine with manual pull start Fits the majority of gas scooters, pocket bikes, and mini choppers Complete 49cc scooter engine with manual pull start. Fits the majority of gas scooters, pocket bikes, and mini choppers. High quality replacement engine. With the transmission attached, this engine rotates in a clockwise direction when viewing the face of the sprocket. Includes transmission (with 8 mm 05T chain sprocket), standard muffler, carburetor, air filter, clutch pad assembly, and pull start. Compatible gas scooter parts for this engine are available at the links below: Carburetor Scooter Carburetor for 43cc, 49cc, 52cc Engines with 15 mm Intake Ignition Coil Ignition Coil for 2-Stroke Engines 49cc/52cc with 70mm Mounting Hole Spacing Exhaust Pipe Chrome Exhaust Pipe for 33cc, 36cc, 4