· Motor Type: Four Stroke, air-cooled
70° V-twin; SOHC, 2 valves/cylinder
· Bore x Stroke: 81 x63mm
· Displacement: 649 cc (39.6 cu
in)
· Max Power: 40 hp (30 kW) @ 6.500
rpm
· Max Torque: 50.1 N·m (37.0
lbf·ft) @ 3.000 rpm
· Compression Ratio: 9.0:1
· Carburation System: 2x28mm
Mikumi BDS28 CV Carburetors
· Engine Lubricating System: Wet
sump
