Yamaha XJ 650

Yamaha XJ 650

This bike was very commonly kitted out as a police bike.

year icon
Model year
1981
make icon
Make
Yamaha
power icon
Engine Power
70.43 HP (51.8 kW) @ 9400 rpm
Speed icon
Top Speed
122.41 mph

Technical Specifications

Engine and transmission

  • Engine type:
    4 cylinders, 4-stroke, Inline
  • Displacement:
    653 cc (39.9 cubic inches)
  • Bore × stroke:
    2.48 inch × 2.06 inch (oversquare - shortstroke)
  • Cooling system:
    Air cooled
  • Power:
    70.43 HP (51.8 kW) @ 9400 rpm
  • Throttle:
    Cable operated
  • Valve train:
    DOHC, variable
  • Valves per cylinder:
    2
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Compression:
    9.2:1
  • Engine mounting:
    Transverse
  • Lubrication system:
    Wet sump
  • Gear box:
    Manual 5-speed
  • Clutch:
    Wet, multiple discs, cable operated
  • Final drive:
    Shaft
  • Starter:
    Electric

Dimensions

  • Curb weight:
    509.3 lbs

Chassis and suspension

  • Front
    Suspension:
    Cartridge
    Brake:
    Twin Disk
  • Rear
    Suspension:
    mono shock, Swingarm
    Brake:
    Drum
    Tire:
    120 / 90 R18
  • Frame type:
    steel, Double cradle frame

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.22 KW/lbs (4.46 lbs/HP)
  • Top speed:
    122.41 mph
  • Fuel capacity:
    5.42 gals
  • Number of riders:
    2 persons

You May Also Like...