Note: Does not include instructions, it is strongly recommended that professionals install. Please be sure to use professional two-stroke oil, do not use four-stroke or other stroke oil, otherwise it will cause engine loss. Package includes: 1*49cc engine 1*Fuel tank 1*Throttle cable 1*Wire harness 1*Handle 1*Chain Engine suitable for: For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter. Product Description: Condition:New Engine Displacement:49cc Cylinder Numbers:Single cylinder Stroke:2-stroke Chain:T8F Sprocket:14 Teeth Gas-oil Mix Rate: 25:1Gasoline Two-stroke motor oil Gear Box Reduction Rate: 3.1 : 1 Displacement: 49cc Spark Plug Size: L7T L7TC Application:for most air cooled Mini Dirt Bikes Brand:Unbranded Feature : (1) 49cc mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain. (2) Engine is COMPELTE WITH High performance cylinder head, plug, powder coated metal pull start, air filter and 14mm carburettor,Balanced crank, balanced flywheel, ported piston windows, Uprated Gear transmission unit. (3) For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.