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Yamaha FJ 1200

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Make Model

Yamaha FJ 1200 

Year

1995 - 97

Engine

Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.

Capacity

1188 cc / 72.5 cu in
Bore x Stroke 77 x 63.8 mm
Cooling System Air/oil cooled
Compression Ratio 9.7:1
Lubrication Wet sump
Engine Oil 20W/40
Oil Capacity 4.2 Litres

Induction

4x Mikuni BS36 36 mm carburettors

Ignition

TCI (Transistor Controlled Ignition)
Spark Plug NGK, DP8EA-9
Starting Starting

Max Power

130 hp / 94.9 kW @ 9000 rpm 
Max Power Rear Tyre 112.5 hp @ 8600 rpm

Max Torque

108 Nm / 79.6 lb-ft @ 7500 rpm
Clutch Wet, multiple discs, hydraulic operated

Transmission 

5 Speed 
Final Drive Chain 2.353 (40/17)
Primary Red. System & Ratio Spur Gear
1.750 (98/56)
Gear Ratio 1st 2.857 (40/14) 2nd   2.000 (36/18) 3rd 1.571 (33/21) 4th 1.291 (31/24) 5th 1.115 (29/26)
Frame Steel, twin spar

Front Suspension

Telescopic with 3-way preload and damping adjustment

Rear Suspension

Monocross monoshock 5-way preload and 5-way damping adjustment

Front Brakes

2x 282mm discs

Rear Brakes

Single 282mm disc

Front Tyre

120/70-VR17

Rear Tyre

150/80 V16
Dimensions Length 2230mm / 87.8 in
Width 775 mm / 30.5 in
Height 1,245mm / 49.0 in
Wheelbase 1490 mm / 58.7in
Seat Height 780 mm / 30.7 in
Ground Clearance 140 mm / 5.5 in

Dry Weight

245 kg / 540.1 lbs
Wet Weight 259 kg / 571 lbs

Fuel Capacity

22 Litres / 5.8 gal

Consumption Average

14.5 km/lit

Braking 60 - 0 / 100 - 0

14.1 m / 40.0 m

Standing ¼ Mile  

10.9 sec / 200.3 km/h

Top Speed

244.3 km/h / 151.6 mph

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In 1986 Yamaha decided to upgrade the FJ1100 by increasing the engine displacement slightly and adding upgraded suspension and other components. The result was the FJ1200. They also changed the colour choices with the next model, but they weren't significant. The peak power output was raised slightly to 130 bhp (97 kW) from the FJ1100s 125 bhp (93 kW),[citation needed] the FJ1200 had more low- to mid-range torque. The FJ1200 was produced in three main successive versions (1TX, 3CV and 3XW) each updated version benefiting from improvements to bodywork, front and rear suspension components, and the addition of an optional ABS-equipped version (FJ1200A) from 1991 until 1996 when Yamaha discontinued the FJ1200 in the United Kingdom. The model was discontinued in the United States in 1993. Market competitors during its production years included the BMW K100RS, Suzuki's 1100 Katana, and Kawasaki's Ninja ZX-10.

Engine

The FJ1200 uses a four cylinder in-line layout and is air-cooled. Sixteen valves are operated by a chain-driven double overhead camshaft; valve clearances are adjusted using shims. The four constant-velocity carburettors are mounted in a bank behind the cylinders and feed each cylinder through a short intake manifolds. Four exhaust downpipes join a box below the engine where the gases are split to exit through two silencers (mufflers). The crankshaft is geared directly to the clutch, no counter balancer shaft is used. Starting is by electric starter only. Lubrication is wet sump using a trochoid pump; an oil radiator assists with cooling.  Both the FJ1100 and FJ1200 were fitted with an additional fuel vapour recovery system to comply with California emission regulations.

Transmission

The FJ1200 uses a five-speed constant-mesh sequential manual close-ratio gearbox. The clutch is of the wet, multiple-disc diaphragm spring type and is hydraulically operated. Final drive is by O-ring chain and sprockets.

Chassis

The frame of the FJ1200 is manufactured from mild steel box-section and uses a perimeter layout, the fairing and upper rear section use separate cylindrical tubing sub-frames. The rear shock absorber is placed vertically behind the engine and connects to a swinging arm made from extruded aluminium alloy (note: later 3XW models have mild steel swinging arm) via several forged aluminium rocker arms. The 17-inch front wheel is held between 41 mm spring and oil damped forks. The FJ1100 and early FJ1200 models featured adjustable anti-dive units and a smaller diameter 16-inch wheel. The FJ1100 and early FJ1200 used twin ventilated disc brakes for the front wheel with a single ventilated disc at the rear. FJ1200 models, 3CV & 3XW, used solid front discs but retained the rear ventilated disc, front brake calipers were upgraded to a four-piston design. An anti-lock braking system was used on the FJ1200A. A full fairing protects the rider, varying height fixed windscreens were available as options.

Electrical system

The FJ1200 features a standard 12 volt electrical system. The alternator and starter motor is mounted behind the cylinders. Nippondenso Transistor Controlled Ignition (TCI) is used in conjunction with two coils. Yamaha's self-cancelling indicator unit is used and a variable resistance gauging system is used to monitor engine oil contents with associated warning lights. A large fuel gauge is provided as is a low fuel level warning light. A digital clock is also fitted. A safety feature of the FJ1200 is that the engine ignition is cut if the first gear is selected with the side-stand down, this is now commonplace on modern motorcycles.

Source Wikipedia