Yamaha_FJ1200

Yamaha FJ 1200A

   

Make Model

Yamaha FJ 1200  3SK1 / 3SK2

Year

1991

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 36mm Mikuni carbs

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, cable 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

Yamaha took a long time to build a big , four-stroke that matched the popularity of the firm's smaller two-stroke models. Success finally came with the FJ1200 sports-tourer, which changed little during a decade in production. Yet ironically the Yamaha found its niche almost by accident, as its predecessor the FJ1100. released two years earlier in 1984, had been created as an 'out-and-out high performance sports machine", in Yamaha's words - only to be outgunned by Kawasaki's more aggressive GPZ900R.

The FJ1100 itself was a fast and fine bike that finally proved the ability of Yamaha's four-stroke engineers, and in any previous year would have taken the honours for pure performance. Instead, the sportier Kawasaki's arrival meant that the FJ became known as a long-distance roadburner - a role for which it was superbly well equipped due to its torquey engine, stable handling and comfort.

 

 

Sporting pretensions

That Yamaha was capable of producing a powerful and reliable four-cylinder engine came as no surprise, for the firm's experience stretched back to the XS1100 of 1978. The FJ format incorporated a 16-valve cylinder head for the first time, although ironically the bike's sporting pretensions ensured that final drive was by chain instead of a more practical shaft. Yamaha moved fast to improve the original FJ, enlarging its 1097cc air-cooled, 16-valve four-cylinder engine to 1188cc to produce the FJ1200. At the same time some details were refined while the basic layout was retained.

If the FJ's engine owed much to previous Yamahas, its chassis was much more innovative. The frame was a rectangular-section steel unit that appeared to have been influenced by Bimota. Main rails ran from the swingarm pivot area, around the cylinder head, then around the forks and steering head before joining at the front of the bike. Yamaha called the design 'Lateral' or 'Perimeter' Frame Concept, depending on the market.

 

Even when the FJ1200 was released, its air-cooled engine was described by one magazine tester as an anachronism. But neither that rider, nor many others, complained about the bike's performance. The bigger motor had the same peak power output of 125bhp, and produced even more of the strong, seamless low-rev torque for which the original FJ had become renowned.

Whether it had one person to carry or two, the Yamaha surged smoothly forward from walking pace in third gear. And once out of town, the rider's left boot was barely required as the FJ delivered scorching performance without leaving the tallest ratio of its five-speed gearbox. Given enough room the Yamaha was good for 150mph (241km/h), but more important was its effortless feel and the smoothness with which it sat at high speed.

 

 

At 5761b (261kg) the FJ1200 was not the lightest of superbikes, but it handled well. Its frame was strong, its suspension well-damped if slightly soft for hard riding, and for such a big, roomy bike it was easy to manoeuvre. And the Yamaha was practical too. Its half-fairing and reasonably tall screen combined with features including a large fuel tank, thick dual-seat and roomy riding position to make for relaxed long-distance travel.

In 1988, two years after its introduction, the FJ1200 was updated with a 17-inch front wheel, in place of the original 16-incher, plus revised suspension, brakes and screen. By this time the FJ had become the yardstick against which other sports-tourers were judged. It remained popular well into the following decade, gaining features including optional anti-lock brakes, but retaining its look and personality to the end.

Source of review: Fast Bikes by Roland Brown

n 1984, Yamaha reentered the super-bike fray after years of neutrality by releasing the predecessor of the FJ1200, the FJ1100, in the model years 1984 and 1985.The long-awaited bike was big and refined so it rapidly became very popular, and competed well against others in the “sport-touring” class of motorcycles. This class is not orientated on pure performance but on the balance of utility and sport with friendly ride characteristics such as greater maneuverability and upright seating configuration designed to reduce back strain on long trips.

Basing on the success of the FJ1100, Yamaha decided, in 1986, to boost performance and add upgraded suspension and other components. The result was the FJ1200. Produced virtually the same from 1986 through 1989, a slight update of the bodywork kept the model line current through 1993, when Yamaha discontinued the FJ.

Other liter-class motorcycles produce more peak horsepower and handle better than the FJ but the Yamaha’s beauty becomes apparent as sure as its odometer racks up miles.

The bike’s main competitors during its production years were mainly the BMW’s K100RS, Suzuki’s 1100 Katana and Kawasaki’s ZX-10.

Weight and sheer size are the major chinks in the FJ’s armor when it comes to the road battle with newer, liter bikes. Weighing 588 pounds wet, it’s considerably heavier than the modern racers; the FZR 1000 weighs 522 pounds and the GSXR 1000 weighs 532. The FJ’s wheelbase stretches to 58.7 inches, while the biggest FZR’s wheelbase is 57 inches, and the GSXR’s 56.7 inches.

Source Top Speed