... cylinder,Over head valve,four-stroke,air-cooled 4)GS,ISO and CE Portable engine with 2.5 HP small power can use ... stroke52x 46mmDisplacement97.7mlMax.Output2.5HP/3,600rpmMax.Torque3.2N.m/2,600rpmFuel tank capacity1.4LOil capacity0.3LFuel consumption≤450g/kW.hIgnition ... systemrecoil startEngine typessingle-cylinder,Over head valve,four-stroke,air-cooledNet/gross weight9/10kgDimensions300 x 290 x 370mm