Air-cooled 4 stroke OHV single-cylinder Bore X Stroke: 82mmX62mm Displacement: 338ml Max. power output: 11HP/3600rpm Max. torque : 23.5N.m/2500rpm Ignition system: Non-contact transistorized ignition (TCI) Start mode: Recoil and hand-operated Compression ratio: 8:1 Fuel tank capacity: 6.5L Fuel consumption: 290g/HP-hour Engine oil capacity: 1.1L Dimensions(LXWXH): 405mmX450mmX443mm Dry weight: 31kg/35kg