Yamaha FJ 1100

Yamaha FJ 1100

The FJ is a genuine 150 mph superbike, combining a huge and immenseley strong engine with a low and fairly lightweight chassis.

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Model year
1985
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Make
Yamaha
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Engine Power
124 HP (91.2 kW) @ 9000 rpm
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Curb Weight
575.4 lbs

Technical Specifications

Engine and transmission

  • Engine type:
    4 cylinders, 4-stroke, Inline
  • Displacement:
    1097 cc (67.03 cubic inches)
  • Bore × stroke:
    2.91 inch × 2.51 inch (oversquare - shortstroke)
  • Cooling system:
    Air cooled
  • Power:
    124 HP (91.2 kW) @ 9000 rpm
  • Torque:
    86 Nm (63.43 lb-ft) @ 8000 rpm
  • Throttle:
    Cable operated
  • Valve train:
    DOHC, variable
  • Valves per cylinder:
    4
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Funnel diameter:
    1.61 inch
  • Compression:
    9.5:1
  • Engine mounting:
    Transverse
  • Lubrication system:
    Wet sump
  • Gear box:
    Manual 5-speed
  • Clutch:
    Wet, multiple discs, cable operated
  • Final drive:
    Chain
  • Spark plug pipe type:
    NGK, DPR8EA-9
  • Starter:
    Electric

Dimensions

  • Curb weight:
    575.4 lbs

Chassis and suspension

  • Front
    Suspension:
    Cartridge
    Brake:
    Twin Disk, Ø11.1 inch
    Tire:
    120 / 80 R16
    Tire pressure:
    0.16 PSI
  • Rear
    Suspension:
    mono shock, Swingarm
    Brake:
    Disk, Ø11.1 inch
    Tire:
    150 / 80 R16
    Tire pressure:
    0.17 PSI
  • Frame type:
    steel, Double cradle frame

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.35 KW/lbs (2.86 lbs/HP)
  • Fuel capacity:
    6.34 gals
  • Number of riders:
    2 persons

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