??49CC HIGH PERFORMANCE ENGINE??: 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 Cvt Transmission Unit. ??49CC ENGINE MOTOR??: 49cc mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain. ??2 STROKE ENGINE PARAMETERS??: Placement on VehicleLeft, Right, Bore: 40mm, Filter: Carb Air Filter, Spark Plug Size: L7T L7TC, Surface Finish: High Quality, Type: 47cc 49cc 50cc engine, Cylinder Numbers: Single cylinder, Stroke: 2-Stroke, Gas-oil Mix Rate: 25:1, Chain: 25h, Gear Box Reduction Rate: 3.1 : 1, Displacement: 49cc ??FITS (FOR THE REFERENCE)??: For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter, Package includes: 1x Complete Engine(As picture) ??Complete 49CC 2 Stroke Engine??: Cooling: Air forced cooling, Start Way: Recoil pull start??new style recoil,easy to pull start, Recoil Starter Material: New style easy pull starter, Application: for most air cooled Mini Dirt Bikes Product function description: Placement on Vehicle Left, Right Bore 40mm Filter: Carb Air Filter Bundle Description: Complete 49CC 2 Stroke Engine Spark Plug Size: L7T L7TC Surface Finish: High Quality UPC: Does Not Apply Manufacturer Part Number: Does Not Apply Type: 47cc 49cc 50cc engine Cylinder Numbers: Single cylinder Stroke: 2-Stroke Gas-oil Mix Rate: 25:1 Chain: 25h Gear Box Reduction Rate: 3.1 : 1 Displacement: 49cc Application: for most air cooled Mini Dirt Bikes Cooling: Air forced cooling Start Way: Recoil pull start??new style recoil,easy to pull start Recoil Starter Material: New style easy pull starter Feature : 49cc mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain. 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 CVT transmission unit. For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter.  Fits (For the reference): For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter.  Package includes: 1x Complete Engine(As picture)