- Engine configuration
- 4-stroke, in-line 4-cylinder, DOHC, 16-valve, liquid-cooled
- Engine displacement
- 636ccSource wording: 636cc
- Bore × stroke
- 67.0 x 45.1mm
- Compression ratio
- 12.9:1
- Maximum power
- 127hpSource wording: 127.0 hp¹ @ 13,000 rpm
- Maximum torque
- 70.64NmSource wording: 52.1 lb-ft @ 10,800 rpm
- Fuel system
- DFI® with 38mm Keihin throttle bodies (4) and oval sub-throttles
- Ignition
- TCBI with electronic advance
- Cooling system
- Liquid-cooledSource wording: 4-stroke, in-line 4-cylinder, DOHC, 16-valve, liquid-cooled