Liquid-cooled, 401cc, SOHC, four-stroke single is the best-performing engine in its class.*
Semi-oval slide 33mm BSR Mikuni carburetor and high-output DC-CDI ignition deliver incredible throttle response and engine performance at all RPM.
Pushbutton electric starting backed up by auxiliary recoil starter.
Stainless steel muffler and header design provides superior power characteristics, exhaust sound and durability.