... stroke, Air-cooling. 2.Displacement: 52 cc. 3.Gasoline/2-cycle oil mixing ratio: 25:1 1.Engine ... /min3.Displacement: 52 cc4.Carburetor: pump-film type5.Gasoline/2-cycle oil mixing ratio: 25:16.Idling speed ... 3/8"/0.325"thickness of link of chain 0,058 in 0,058 in 0,058 in ... Cylinder,Two-stroke,Air-cooling gasoline engine Single Cylinder,Two-stroke,Air-cooling gasoline engine Single Cylinder,Two-stroke ...