Gasoline generator: (1)YK900 (2)brushless,self-exciaton,2-poles,single phase (3)single cylinder,air-cooled,2-stroke,mix50:1 ModelYK900 GeneratorBrushless,self- ... output(V/A)12V/8.3A Engine Model1E45F TypeSingle cylinder,air-cooled,2-stroke,mix50:1 Starting systemRecoil start Fuel tank capacity(L ... : Schematic for your reference:Some sections of factory: YK900 air-cooled noiseless gasoline generator