Chain Saw single cylinder,two-stroke,air-cooling 52cc 2.0kw/8000rpm Chain Saw Engine typesingle cylinder,two-stroke,air-coolingDisplacement52ccEngine Power2.0kw/8000rpmFuel mixture ratio25:1(Gasoline 25:two-cycle oil 1)Fuel Tank Capacity550mlStarting SystemAutomatic recoil hand starterGUide bar size16"/18"/20"cCrburetorpump-film type Chain Saw