... Gasoline Engine type: Air-cooled; 4-stroke; OHV250tilt, level shaft,1- cylinder BoreXstroke: 68x45mm Displacement:163cc Gasoline Engine: Type: Air- ... 4-stroke; OHV250tilt, level shaft, 1- cylinder BoreXstroke: 68x45mm Displacement: 163cc Compression ratio: 8.5: 1 Max. Output: 5.5PS(4.1KW) / 3, ... 600rpm Recommend AC Output: 4.0PS(3.0KW) / 3, 600rpm Max torque: 1.1kg ...