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Suzuki GSX 1100S Katana Final Edition

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Make Model

 Suzuki GSX 1100S Katana Final Edition

Model

 1994

Engine

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

Capacity

 1074 cc / 65.5 cu in
Bore x Stroke 72 x 66 mm
Cooling System Air cooled
Compression Ratio 9.5:1
Air Cleaner Dual element (Paper and polyurethane)
Lubrication Wet sump
Oil Capacity 4.2 L / 4.4 US qt / 3.7 Imp qt

Induction

 4 x Mikuni BS34SS carburetors

Ignition 

 Transistorized
Ignition Timing 15º BTDC below 1500 rpm / 32º BTDC above 2350 rpm
Spark Plug NGK D8EA (in E-01,24,25,30,34), NGK DR8ES-L (the others) - gap 0.6-0.7 mm (0.024-0.028 in)
Battery  12V 50.4 kC (14 Ah)/10HR - type YB14L-A2
Generator Three-phase A.C. generator
Starting Electric

Max Power

70.8 kW / 95 hp / @ 9500 rpm

Max Torque

 84.3 Nm / 8.6 kgf-m / 62.2 lb-ft @ 4000 rpm
Clutch Wet multi-plate

Transmission

 5 Speed 
Final Drive Chain, Daido D.I.D 630YL, 96 links
Primary Reduction 1.775:1 (87/49)
Final Reduction 2.800:1 (42/15)
Gear Ratio 1st 2.500 (35/15) / 2nd 1.777 (32/18) / 3rd 1.380 (29/21) / 4th 1.125 (27/24) / 5th 0.961 (25/26)
Frame Steel, double cradle frame

Front Suspension

 Telescopic, oil damped, spring 4-way adjustable with anti-dive
Front Wheel Travel 150 mm / 5.91 in

Rear Suspension

 Dual shock oil damped, damper 4-way, spring 5-way adjustable
Rear Wheel Travel 109 mm / 4.29 in

Front Brakes

 2 x 275 mm Discs, 2 piston calipers

Rear Brakes

 Single 275 mm disc, 1 piston caliper

Front Tyre

 3.50 - V19

Rear Tyre

 4.50 - V19
Rake 29°
Trail 118 mm / 4.65 in
Dimensions Length: 2260 mm / 89.0 in
Width:     715 mm / 28.1 in
Height:  1195 mm / 47.0 in
Wheelbase 1520 mm / 59.8 in
Seat Height 775 mm / 30.5 in
Ground Clearance 175 mm / 6.9 in
Turning Radius 3.5 m / 11.5 ft
Dry Weight 232 kg / 511 lbs
Wet Weight 243 kg / 535 lbs
Fuel Capacity 22 L / 5.0 US gal / 4.2 Imp gal
Top Speed (limited) 180 km/h / 112 mph
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1994 year's GSX1100SR had different technical specifications for the first time since launch in 1981. Even the engine had different character. As the earlier versions had 111 bhp, the new version of the engine was powered down to 95 bhp. The torque was also decreased, from 9.8 kgf-m at 6,500 rpm to 8.6 kgf-m at 4,000 rpm. The displacement, bore and stroke were still the same but the carburetors different and the oil capacity was increased from 4 Litresto 4,2. The ignition advance system became digital.

When decreasing the power output, even the top speed on the speedometer was limited from 240 km/h to 180 km/h. The tank was made smaller, from 22 Litres to 19.

The clutch was now electrically power assisted and the front suspension infinitely adjustable. Rear shocks were updated from traditional upright shockers to modern double tube upside down type shockers with gas chamber attached to the side.

The rear wheel was stretched from 17" to 19" in diameter (the front wheel was still 19").
The seat material was altered from buckskin type to vinyl leather.

And so on. The decreasing of top speed, engine character and lowering the seat height was apparently a way of changing the character of the Katana closer to a sport tourer rather than being a pure high speed machine. The double cradle frame was no longer the way to build high speed racers but no such radical changes like changing the frame construction on the Katana were ever made.

The rest of the world hardly new than the model still existed, it was long time ago since the model was exported outside Japan. In USA, when you mentioned 1100 cc Katana, you were talking about a whole different model, the sport tourer GSX1100F.

Suzuki Motor Company didn't think the model could live on, either. But by public demand the company kept on manufacturing the model until the mid 90's when the history of the 1100 cc Katana was supposed to end.

Source suzukicycles.org

 

 

 

 

 


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