GENUINE LIFAN 4 Stroke 140cc ENGINE Type: 1-cylinder, horizontal, 4-stroke, oil-cooled kick start, Gear: 1234 Bore x Stroke: 55mm x 59mm Max. Power & Corresponding Speed: 8kw(7500±375) Max. Torque & Corresponding Speed: 9.5N.M(5000±250) Start Mode: kick start Compression: 9.