Mega 20-inch, 550-ml, gasoline-powered wood chain saw, model number CS-5800 Engine type: air-cooled, single-cylinder, two-stroke 58 cc displacement and 2.4 kW/8500 rpm of engine power Speed at idle: 3000–3200 r/min Carburetor pump film or diaphragm type for the ignition system In two cycles, the ratio of gasoline to oil is 25:1. 55-liter fuel tank capacity