Engine type: single cylinder, 2-stroke, air-cooling gasoline engine Displacement: 38cc Rated output power:1.2Kw Relevant speed:7,500rpm Lading speed: 2,800rpm Fuel mixture ratio: (gasoline/two-cycle oil 25:1) Chain oil: special oil for two-cycle engine Fuel tank capacity: 310ml Engine oil tank capacity: 210ml Ignition system: C.D.I Starting system: automatic recoil hand starter Guide bar size: 16"/18" Guide bar brand: Chinese Chain: Carlton/Tiger Chain pitch: 3/8" Engine net weight: 4.1kg G.W./N.W.: 6/4.9kg