Gasoline Saw:(DC380) Engine Model: 1E39F Power Type: Single Cylinder,Two-stroke,Air-cooling gasoline engine. Displacement: 37.2cc Compress Ratio: 6.1:1 Rated Output Power & Relevant Speed:1.1Kw/7000rpm Lading Speed:3000 rpm Fuel Mixture Ratio: (Gasoline 25 : Two-cycle Oil 1) Chain Oil: Special oil for two-cycle engine Fuel Tank Capacity: 310 ml Engine Oil Tank Capacity: 210 ml Ignition System: C.D.I Starting System: Automatic recoil hand starter Guide Bar Size: 12″/14″/16″ Chain:Oregon / Carlton Chain Pitch:3/8″ Chain Gauge: 0.050″ Engine net weight: 4.05 kg G.W/N.W:6/4.85kg　 General Accessories: Guide bar、Chain、File、Plug wrench