1984 - 1987 Yamaha XJ 600

Make Model	Yamaha XJ 600
Year	1984 - 87
Engine	Four stroke, transverse four cylinder. DOHC, 2 valves per cylinder.
Capacity	598 cc / 36.5 cu-in
Bore x Stroke	58.5 x 55.7 mm
Cooling System	Air cooled
Compression Ratio	10.0:1
Induction	4x Mikuni BS32 carburetors
Ignition	CDI
Starting	Electric
Max Power	72 hp / 52.5 kW @ 10000 rpm
Max Torque	53.9 Nm / 39.7 kW @ 8000 rpm
Transmission	6 Speed
Final Drive	Chain
Front Suspension	Telescopic forks
Rear Suspension	Monocross rising rate with 5-way preload.
Front Brakes	2x 267mm discs 2 piston calipers
Rear Brakes	Single 267mm disc 1 piston caliper
Front Tyre	90/90 V18
Rear Tyre	110/90 V18
Wet Weight	212 kg / 467.4 lbs
Fuel Capacity	20 Litres / 5.3 US gal
Top Speed	205 km/h / 127 mph

The Yamaha XJ600 is a relatively light motorcycle with top half fairing and around 72 bhp (54 kW). The XJ600 was built from 1984 until 1991, when it was replaced with the Yamaha Diversion/Seca II. In North America, the bike was sold as the FJ600. The 1984 Yamaha XJ600 and FJ600 were notable for being the first Japanese inline-4 motorcycles with a displacement of 600cc. They are also one of the first inline-4 motorcycles to use mono-shock rear suspension.