Displacement:71.7cc Chain:Carlton/Oregon brand Displacement:71.7cc Fuel:two cycle oil gasoline: 25:1 Fuel tank capacity:770ml Carburetor: Pump-film type Ignition: CDI Power: 3.9kw/9500rpm Oil feeding system: Automatic pump with adjuster Bar length: 20" 22" 24" Chain:Carlton/Oregon brand 72CC PROFESSIONAL CHAIN SAW 20/22/24INCH BAR