Engine Detail:
686cc liquid-cooled w/fan, SOHC four-stroke single; 4-valve
Engine Capacity (cc / Ci ):
686cc / 41.9
Engine Valves:
SOHC
Valve Configuration:
4-valves
Total Valves:
4
Engine Type:
four-stroke
Engine Cooling:
liquid-cooled
Engine Cylinders:
single-cylinder
Engine Braking:
All wheel
Displacement To Weight CC:
1.14
Bore Stroke(mm):
102.0 x 84.0mm
Bore Stroke(in):
4.02in. x 3.31 in.
Compression Ratio:
9.2:1
Fuel System:
Yamaha Fuel Injection (YFI), 44mm
Fuel System Brand:
Mikuni
Fuel Injector Size MM:
44
Fuel Type:
Petrol
Lubrication:
Wet sump
Ignition:
32 Bit ECU
Speed Governor:
No