1.16HP gasoline engine 2. 2.5HP 4HP 5.5HP 6.5HP 9Hp ... ,4 Stroke,OHV Gasoline,Single CylinderAir Cooled,4 Stroke,OHV Gasoline,Single CylinderAir Cooled,4 Stroke,OHV Gasoline,Single CylinderDisplacement (CC ... carburetorHorizontal disc valve carburetorHorizontal disc valve carburetorMax .Power Output (HP)11HP13HP16HPOperating Noise Level (dB)58dB58dB58dBEngine oil level warning alarmYYYElectric start ...