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, 43cc, 49cc & 52cc Engines with 1-9/16" Mounting Holes Exhaust Muffler Cover Exhaust Muffler Cover for 49cc/52cc Scooter Engines Transmission Standard Scooter Transmission with 20-Tooth (8mm 05T) Chain Sprocket Mounting Brackets Engine Mount for 33cc - 52cc 2-Stroke Engines Two Shoe Clutch Assembly Clutch Pad Assembly with 2 Shoes Pull Start GS Moon Pull Start PLEASE NOTE: The transmission is sent without transmission fluid and must be filled by the user. We recommend 80W-85 transmission or gear oil. This scooter engine is compatible with all 49cc and 52cc applications using OEM engines that visually look like the detailed picture on the item page. This engine is not compatible on any Bladez brand gas scooters. This 2-stroke 49cc engine is used quite frequently on custom projects and applications. Please ensure this scooter engine will provide the form, fit, and function needed on your custom scooter, go kart, gas powered bicycle, or other personal transportation vehicle prior to ordering!