Engine Detail:
686cc, 4-stroke single, SOHC
Engine Capacity (cc / Ci ):
686 cc / 41.9
Engine Valves:
SOHC
Valve Configuration:
4-valves
Total Valves:
4
Engine Type:
4-stroke
Engine Cooling:
Liquid-cooled with fan
Engine Cylinders:
single-cylinder
Displacement To Weight CC:
1.73
Bore Stroke(mm):
102 mm x 84 mm
Bore Stroke(in):
4.02in. x 3.31 in.
Compression Ratio:
9.2:1
Fuel System:
Yamaha Fuel Injection (YFI), 44 mm
Fuel Injector Size MM:
44
Fuel Type:
Petrol
Ignition:
Electric 16bBit ECU