... 2.Competitive price with simi 2.0 inch honda engine pump, gasoline engine pump, gasoline water pumpWP20 (2" ... and Double-strainer Muffler Key Specifications/Special Features:Engine type: air-cooled, 4-stroke and OHV ... 68 x 45mm Displacement: 163cc Compression ratio: 8.5:1 Maximum output: 5.5PS/3,600rpm ... Recommended power output: 4.8/3,600 plastic/minute Maximum torque: 10.8Nm/2,500rpm Ignition system ...