Specification Engine Type: Single Cylinder, 2 Stroke, Air-cooling Displacement: 49.85CC Max. Power: 1.9kw/7000rpm Rated Power: 1.7kw/6000rpm Overload Power: 1.83kw/6500rpm No-load Speed: 12500rpm Max. Speed: 48km/h Max. Torque: 2.7N.M/6500rpm Max. Horsepower: 3PS Max. Load Capacity: 396.8lbs Min. Fuel Consumption: ≤610g/kW.h Spark Plug: L6T or MB6A Spark Plug Gap: 0.02in Bore * Stroke: Φ1.7*1.3in Carburetor Type: H117B Reduction Ratio: 1:1 Noise Level: 100.7dB (SPL); 116.9dB (SWL) Fuel Mixture (90# Gasoline : 2-stroke Engine Oil): 25:1 (Early); 30:1 (Later) Fuel Tank Capacity: 1.2L Fuel Tank Size: 9.1*4.7*4.7in Engine Dimensions: 11.4*5.5*8.9in Package Included 1* Engine 1* 25H-136L Chain 1* Kill Switch 1* Throttle Grip 1* Left Grip Cover 1* Fuel Tank 1* Throttle Cable.