... speed: 2.0kW 3)50CC,125CC,150CC ZNEN gas engine with power 50CC,125CC,150CC Diameter of cylinder and distance39 x 41 ... .5mmMaximum power and relative rotation speed2.0kW/8,000rpmBrand of crankcase lube10W ... -box lubeSAE-90Maximum torsion distance and relative rotation speed2.8Nm/6,000rpm