Yamaha FJ600: review, history, specs

From CycleChaos
Jump to navigation Jump to search
Yamaha FJ600
Also called FJ 600
Production 1984 - 1985
Class Sport Bike
Four stroke, transverse four cylinder. DOHC, 2 valves per cylinder.
Bore / Stroke 58.4mm x 58.4mm
Compression ratio 10.0:1
Top Speed 125 mph (201 km/h)
Horsepower 72.01 HP (53.7 KW) @ 10000RPM
Torque 39.83 ft/lbs (54.0 Nm) @ 8000RPM
Air Filter K&N YA-1684 `84-93[1]
Ignition hitachi tid 14-31, transistor tci
Spark Plug NGK YUASA D8EA '84-85
Battery YUASA 12N12A-4A-1 '84-85
Transmission Gear box: 6-Speed

Final Drive: Chain

Clutch: Wet, multiplate
Final Drive Chain: 530x106
Front Sprocket 16T
Rear Sprocket 45T
Suspension Front: Telescopic forks
Rear: Monocross rising rate with 5-way preload
Brakes Front: Double discs 267 mm
Rear: Single disc 267 mm
Front Tire 110/90 V18
Rear Tire 140/90 V18
Wheelbase 56.1 inches (1425 mm)
Length 83.39 inches (2118 mm)
Width 28.9 inches (734 mm)
Height 48.19 inches (1224 mm)
Seat Height 31.1 inches (790 mm)
Weight 208.0 kg (wet)
Oil Capacity 0.79 Gallon (3.00 Liters)
Oil Filter K&N KN-144
Recommended Oil Yamalube 10w-40
Fuel Capacity 5.68 Gallon (21.50 Liters)
Fuel Consumption 5.70 liters/100 km (17.5 km/l or 41.27 mpg)
Manuals Service Manual

The Yamaha FJ 600 was a Four stroke, transverse four cylinder. DOHC, 2 valves per cylinder. Sport Bike motorcycle produced by Yamaha between 1984 and 1985. It could reach a top speed of 125 mph (201 km/h). Max torque was 39.83 ft/lbs (54.0 Nm) @ 8000 RPM. Claimed horsepower was 72.01 HP (53.7 KW) @ 10000 RPM.

The FJ 600 promises true sporting performance. Though a few engine parts were borrowed from previous machines, the FJ 600 is essentially all new and aimed squarely at sports riders. Power is transmitted to the chain-driven rear wheel through a six-speed gear box. A frame-mounted fairing, triple discs, DeCarbon type single-shock rear suspension system and long-travel front suspension with integrated fork brace adorn the short (56.1-inch wheelbase), low-slung chassis.


The engine was a oil & air cooled Four stroke, transverse four cylinder. DOHC, 2 valves per cylinder.. A 58.4mm bore x 58.4mm stroke result in a displacement of just 598.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).


The bike has a 6-Speed transmission. Power was moderated via the Wet, multiplate.


It came with a 110/90 V18 front tire and a 140/90 V18 rear tire. Stopping was achieved via Double discs 267 mm in the front and a Single disc 267 mm in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Monocross rising rate with 5-way preload. The FJ 600 was fitted with a 5.68 Gallon (21.50 Liters) fuel tank. The wheelbase was 56.1 inches (1425 mm) long.



1985 Yamaha FJ 600[edit]


  1. 2019 K&L Supply Co Catalog. K&L Supply Co. 2019.