Chainsaw ZS4001Enginemodel1E50FEnginetypeSinglecylinder,2-stroke,forcedaircoolingBore stroke(mm)50 40Displacement(ml)78.5Compressionratio7.5:1 Ratedpower(hp)andrev(rpm)3.8/6000Max.torque(n.m)andrev(rpm)4.0/6500FueloilGasolineandmachineoil(special-purposetwostrokes machineoils)20：1LgnitionT.C.IStartingsystemRecoil startEnginenetweight(kg) 8Chainsawnetweight(kg) 10.5 GuidebartypeSprocketnoseGuidebarsize(mm)570/470Sawchainpitch(mm)10.26Sawchaingauge(mm)7.2 Packingsize（withoutGuidebar）(mm)360 360 340