Yamaha FJ600: review, history, specs

**Yamaha FJ600**
Manufacturer	Yamaha
Also called	FJ 600
Production	1984 - 1985
Class	Sport Bike
Engine	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)
Horse Power	72.01 HP (53.7 KW) @ 10000RPM
Torque	39.83 ft/lbs (54.0 Nm) @ 8000RPM
Ignition type	hitachi tid 14-31, transistor tci
Sparkplug	YUASA D8EA '84-85
Battery	YUASA 12N12A-4A-1 '84-85
Transmission	Gear box: 6-Speed ; Final Drive: Chain ; Clutch: Wet, multiplate ;
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)
Dimensions	L 83.39 inches (2118 mm); W 28.9 inches (734 mm); H 48.19 inches (1224 mm);
Seat height	31.1 inches (790 mm)
Weight	(dry), 208.0 kg (wet)
Fuel capacity	5.68 Gallon (21.50 Liters)
Oil capacity	0.79 Gallon (3.00 Liters)
Fuel consumption	5.70 litres/100 km (17.5 km/l or 41.27 mpg)
Manuals	Service Manual
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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.

Engine

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).

Drive

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

Chassis

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.