1984 Yamaha FJ1100

1984 Yamaha FJ1100

Born in 1984, the 1984 Yamaha FJ1100 is a 1097cc four-cylinder touring motorcycle producing 125hp from Yamaha.

Specifications

Engine

Type
DOHC inline-4
Displacement
1097 cc
Cylinders
4
Power
125 hp @ 9000 rpm
Torque
100.0 Nm
Compression
Bore × Stroke
74.0 × 63.8 mm
Cooling
Air-cooled
Fuel System
4x Mikuni carburetors

Chassis & Transmission

Frame
Steel perimeter frame
Front Suspension
Air-assisted fork
Rear Suspension
Monoshock
Front Brake
Dual disc
Rear Brake
Single disc
Front Tyre
Rear Tyre
Transmission
5-speed
Final Drive
Chain

Performance

Top Speed
240 km/h (149 mph)
¼ Mile

Dimensions & Weight

Dry Weight
245 kg (540 lbs)
Wet Weight
265 kg (584 lbs)
Seat Height
800 mm
Wheelbase
1510 mm
Ground Clearance
Fuel Capacity
22.0 L

History & Story

The 1984 1984 Yamaha FJ1100 was introduced by Yamaha as a touring motorcycle aimed at riders seeking touring motorcycle performance and style. Manufactured in Japan, it represented Yamaha's vision for the four-cylinder touring motorcycle market during the 1980s.

At the heart of the 1984 Yamaha FJ1100 sits a 1097cc DOHC inline-4 engine producing 125 horsepower at 9000 rpm. The four-cylinder powerplant features a four-cylinder layout with air-cooled cooling, fed by 4x Mikuni carburetors. Power reaches the rear wheel through a 5-speed transmission and chain final drive.

Built around a steel perimeter frame frame, the 1984 Yamaha FJ1100 suspends its 245 kg (540 lbs) on air-assisted fork forks and monoshock rear units. Braking relies on dual disc at the front and single disc at the rear, with a 1510 mm wheelbase providing stability.

Performance-wise, the 1984 Yamaha FJ1100 achieves a claimed top speed of 240 km/h (149 mph). With a generous fuel capacity of 22.0 liters, it offers reasonable range for touring motorcycle duties. The seat height of 800 mm makes it comfortable for most riders.

Known Issues

  • Charging system rotor failures on early models
  • Speedometer gear wear

Fun Facts

  • The 1984 Yamaha FJ1100 was one of the largest-displacement motorcycles of its era
  • With 125hp, the 1984 Yamaha FJ1100 was considered extremely powerful when launched

Collector Information

Parts Availability
Good
Collector Rating
5/10

Resources & Parts