Specification:Mode of Engine:Single cylinder, air-cooling, 2-strokeBore & Stroke:47mm & 40mmRated Power:2.5Kw/5000r/min (3 horsepower/5000r/min)Max Power:3.5Kw/6000r/min (5-6 horsepower/6000r/min)Ignition Mode:CDIModel of Chain: 415Chain Length: 110 linksCompression Ratio:6:01Driving Ratio:18:01Fuel Type:No.90Capacity of Tank:2LSpeed Limitation:38km/hourLubrication Oil: oil of 2-stroke petrol engine (Or oil for 10W/40.10W/30)Mixing Ratio of Fuel and engine Oil:16:1 for new sets, 20: 1 after running 500kmType of Sparking Plug:Z4C 14MMVolume of oil Consumption:2.5L/100kmType of Clutch:Friction Plate / DryCooling Mode:Natural air coolingPackage included:1x 80cc 2-stroke engine1x Carburetor1x Ignition coil & CDI1x Throttle handlebar set1x Throttle cable1x Clutch cable1x Kill switch1x Clutch lever1x Chain1x Chain cover1x 44T Sprocket W/ 9 Hole Clamp Pads1x Chain Tensioner1x Fuel tank, Fuel filter1x Gasoline fuel line1x Petcock1x MufflerAll the needed mounting brackets, gaskets, and hardware