Engine type: Air-cooled 4 stroke OHV single cylinder Bore-?troke 68mm-?5mm Displacement: 163cc Compression ratio: 8.5:1 Max.Power output: 5.5HP/3600rpm Max.Torque: 10.8N.m/2500rpm lgnition system: Nom-contact transistorized ignition(TCL) Start mode: Recoil and hand-operated Air cleaner Semi-dry,oil bath,dual,double silent and cyclone type Fuel tank capacity: 3.6L Fuel consumption: 290g/HP-hour Engine oil capacity: 0.6L Dimension(L*W*H): 380mm*330mm*375mm Gross weight: 14KG carton