... 5cc,32.6cc,42.6cc gasoline chain sawEngine type: Gasoline engine,2-stroke,one cylinder,air-cooled Displacement(CC): 51. ... 2Starting system: Recoiled, iuauelFuel mixed ratio: Gasoline:Engine oil(25:1)Lubrication: Unique engine oil for 2-stroke gasoline engineLubrication type, saw-chain ... time,it must start the machine for 5minutes before working.5.After operating,must wait for the chain guide under the ...