... -Stroke,Single Cylinder,Air-Cool ,OHVCylinder Diameter66 mmPiston Stroke 50 mm Engine Displacement171 ccCompression Ratio8.5:1Maximum Engine Power4.1/4000 ... °Starting SystemRecoil StartOperating Noise Level(7m)75dbDry Weight19.5KgDimensions(LxWxH)(mm)670×510×510 (1) oil pressure alarm system can automatically ...