EPA APPROVED SpecificationModelJYS480AJYZ480AJYS530AJYZ530AEngineJFV140JFV160Engine type4-stroke, single cylinder with air cooledBore x stroke (mm)64x4268x45Displacement (ml)135163Compression ratio8:18.5:1Max output (hp/rpm)4.5/36005.5/3600Max torque (N.m/rpm)9.0/250010.8/2500Ignition systemT.C.I.Start modeRecoil and hand-operatedAir cleanerSemi-dry, oil bath, double silent and cyclone typeFuel ...