Positioned in Yamaha's sport touring motorcycle lineup, the 1984 Yamaha FJ 600 pairs a 598 cc (36.5 cu in) oil & air-cooled in-line four, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 72 HP (52.6 kW) at 10,000 rpm while maximum torque reaches 53.9 Nm (39.8 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 120.4 HP per liter and a 2,000 rpm working window between peak torque (8,000 rpm) and peak power (10,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the FJ 600 measures 208 kg (459 lbs) wet (curb), translating to a power-to-weight ratio of 0.35 HP/kg (2.89 kg per horsepower). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,424 mm (56.1 in) wheelbase engineered for balanced agility and highway composure. The 21.5-liter (5.7 US gal) fuel tank paired with a rated consumption of 5.7 L/100 km provides an estimated theoretical range of roughly 377 km (234 miles) between fill-ups, while factory top speed is listed at 201 km/h (125 mph).
Specific Output
120.4 HP/L
Power-to-Weight
0.35 HP/kg (2.89 kg/HP)
Power Band Window
8,000–10,000 rpm
Theoretical Range
~377 km (234 mi)
Engine
Displacement598.0 ccm (36.49 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Power72.0 HP (52.6 kW)) @ 10000 RPM
Torque53.9 Nm (5.5 kgf-m or 39.8 ft.lbs) @ 8000 RPM
Compression10.0:1
Bore x Stroke58.5 x 55.7 mm (2.3 x 2.2 inches)
Valves/Cylinder2
Fuel SystemCarburettor. Mikuni BS32
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionHitachi TID 14-31, Transistor TCI
LubricationWet sump
CoolingOil & air
Max RPM10500
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Performance
Top Speed201.0 km/h (124.9 mph)
0-400m12.40 seconds
0-100 km/h4.90 seconds
Fuel Consumption5.70 litres/100 km (17.5 km/l or 41.27 mpg)
Greenhouse Gases132.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Rake26.0°
Trail106 mm (4.2 inches)
Front SuspensionTelescopic fork
Front Travel99 mm (3.9 inches)
Rear SuspensionMonocross rising rate with 5-way preload
Rear Travel142 mm (5.6 inches)
Wheelbase1424 mm (56.1 inches)
Ground Clearance150 mm (5.9 inches)
Wheels & Brakes
Front Tyre110/90-V18
Rear Tyre140/19-V18
Front BrakesDouble disc. Dual Slotted Discs, 2 piston calipers
Front Brake Ø267 mm (10.5 inches)
Rear BrakesSingle disc. Single Slotted disc, 1 piston calipers
Dimensions & Weight
Weight incl.208.0 kg (458.6 pounds)
Seat Height790 mm (31.1 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
