Specifications Applicable Models: For 49CC Two-stroke Pocket Dirt Bikes, Motorcycles, Quad Bikes, ATVs, etc. Material: Aluminum, Iron Color: Black, Silver Engine Type: 2-Stroke Single Cylinder Engine, Air Cooling Ignition Mechanism: Electronic Ignition Start Mode: Hand-pulled Displacement: 49cc Hosepower: 1.65Hp Rotation Speed: 5500rpm Maximum Power: 1.9kw/7000rpm Rated Power: 1.7kw/6000rpm Continuous Power: 1.6kw/5500rpm Overload Power: 1.83kw/6500rpm Maximum Torque: 2.7N.M/6500rpm Maximum Horsepower: 3PS No-load Speed: 12500rpm Spark Plug Clearance: 0.5mm/0.02in Cylinder Diameter: 44mm/1.73inch Stroke: 32.8mm/1.29in Fuel: 90# Gasoline(Not Included) Minimum Fuel Consumption Rate: <610g/1.34lbs/KW.h Lubrication Oil: FC Grade 2-stroke Gasoline Engine Oil(Not Included).