Engine Model: 1E43F Max Cutting Diameter: 450mm Power Type: Single Cylinder, Two-stroke, Air-cooling gasoline engine. Cylinder Diameter x Stroke: 43*31mm Displacement: 45cc Compress Ratio: 6.1: 1 Rated Output Power & Relevant Speed: 1.7Kw/7500rpm Fuel Mixture Ratio: 25/1(Gasoline 25: Two-cycle Oil 1) Fuel Tank Capacity: 550ml Engine Oil Tank Capacity: 260ml Chain Oil: Special oil for two-cycle engine Ignition System: C. D. I Starting System: Automatic recoil hand starter Guide Bar Size: 16"/18"/20" China: Oregon / Carlton Chain Pitch: 0.325" Chain Gauge: 0.058" G. W/N. W: 7.7/6.5kg Meas: 480X260X300mm