The Suzuki GSX1100SX Katana Prototype motorcycle was created in 1979 and features a four-stroke, transverse, four-cylinder engine with a capacity of 1074 cc. It has a compression ratio of 9.5:1, a wet sump lubrication system, and 4 valves per cylinder. The bike has an air-cooled system and is equipped with a dual-element air cleaner. The ignition is transistorized, and the spark plug is either an NGK D8EA or a DR8ES-L depending on the model, with a gap between 0.6-0.7 mm. The battery is a 12V 50.4 kC (14 Ah)/10HR type YB14L-A2, and the bike has an electric starter. The maximum power of the bike is 83.9 kW, with a maximum torque of 97.1 Nm. It has a wet multi-plate clutch and five-speed transmission, with a chain final drive. The frame is a steel, double-cradle design, with telescopic front suspension and dual shock oil-damped rear suspension. The front brakes consist of 2 x 275 mm discs with 2-piston calipers, while the rear brake has a single 275 mm disc with a 1-piston caliper. The front and rear tires are respectively 3.5 V19 and 4.50 V17, and the bike has a top speed of 225 km/h. The dimensions of the bike are 2245 mm in length, 870 mm in width, 1190 mm in height, and 1520 mm in wheelbase, with a wet weight of 243 kg.
Technical specifications:
Make Model: Suzuki GSX 1100SX Katana Prototype
| Model | 1979 |
|---|---|
| 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 | 3.2 L / 3.4 US qt / 2.8 Imp qt |
| Induction | 4 x Mikuni BS34SS |
| Ignition | Transistorized |
| Ignition Timing | 15 o BTDC below 1500 rpm / 32 o 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 | 83.9 kW / 111 hp / @ 9500 rpm |
| Max Torque | 97.1 Nm / 9.9 kgf-m / 70.9 lb-ft @ 6500 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 – V17 |
| Rake | 30 degrees |
| Trail | 118 mm / 4.65 in |
| Dimensions | Length: 2245 mm / 88.4 in Width: 870 mm / 34.3 in Height: 1190 mm / 46.9 in |
| Wheelbase | 1520 mm / 59.8 in |
| Turning Radius | 3.5 m / 11.5 ft |
| Wet Weight | 243 kg / 535 lbs |
| Top Speed | 225 km/h / 140 mph |
