Suzuki GSX750SD Katana
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| Suzuki GSX750SD Katana | |
| Manufacturer | |
|---|---|
| Production | 1983 |
| Class | Sportbike |
| Engine | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Compression ratio | 9.4:1 |
| Top Speed | 215 km/h 134 mph |
| Ignition | Transistorized |
| 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 |
| Transmission | 5 Speed constant mesh |
| Frame | Steel, double cradle |
| Suspension | Front: Telescopic, preload adjustable and hydraulic anti-dive. Rear: Dual shocks, 5-way preload and 4-way rebound damping adjustable. |
| Brakes | Front: 2 x 275mm Discs, 2 piston calipers Rear: Single 255 mm disc, 1 piston caliper |
| Front Tire | 3.25 H16 |
| Rear Tire | 4.00 H17 |
| Wheelbase | 1520mm / 59.8 in. |
| Weight | 228 kg / 503 lbs (dry), |
| Oil Capacity | 3.2 Liters / 3.4 US qt / 2.8 Imp qt |
| Recommended Oil | Suzuki ECSTAR 10w40 |
| Fuel Capacity | 22 Liters / 5.8 US gal / 4.8 Imp gal |
| Manuals | Service Manual |
It could reach a top speed of 215 km/h 134 mph.
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.. The engine featured a 9.4:1 compression ratio.
Chassis[edit | edit source]
It came with a 3.25 H16 front tire and a 4.00 H17 rear tire. Stopping was achieved via 2 x 275mm Discs, 2 piston calipers in the front and a Single 255 mm disc, 1 piston caliper in the rear. The front suspension was a Telescopic, preload adjustable and hydraulic anti-dive. while the rear was equipped with a Dual shocks, 5-way preload and 4-way rebound damping adjustable.. The GSX750SD Katana was fitted with a 22 Liters / 5.8 US gal / 4.8 Imp gal fuel tank. The bike weighed just 228 kg / 503 lbs. The wheelbase was 1520mm / 59.8 in. long.
Photos[edit | edit source]
Overview[edit | edit source]
Suzuki GSX 750SD Katana
Due to the overwhelming success of the 1100 Kat, Suzuki
released a 750 machine, which to look at was almost identical to
its larger brother. By 1983 they felt that some subtle changes
were needed to keep pace with competition, on the technology
front. Hence the mark II Katana was released. These had 16 inch
front and 17 inch rear wheels and the power was upped to about
72hp, but to look at, it was near enough identical to its
predecessor.
By 1985 Suzuki felt that the 750 Kat was due for an overhaul again and so the mark III version was born. This was a completely new model, not just a face-lift. Although it was designed by Suzuki themselves, it still kept the Hans Muth lines. Mechanically the engine had been replaced by the new 16-value unit from the GSX750E, and developed about 84 bhp. The running gear now had the Suzuki Full Floater suspension rear end and Positive Damping Forks at the front. Probably most noticeable of all however was the new fairing which now had a retractable (pop-up) headlight which helped give it an even sharper front end than the previous models.
The following info from Howie Drake, gives a little more insight into the different types of GSX750SE Katana in the UK (as far as he has been able to ascertain):
Ex Japan - Detuned from the standard GSX750ES, due to Japanese 750cc bhp limit, so only puts out about 70 bhp. You can tell these due to the Japanese warning light that illuminates if you go over 50 mph, replaced by a side stand warning light on non Japanese model. Suzuki UK imported approx. 75 of these as a special import.
Ex South Africa & Australia tuned from the standard GSX750ES with stage two cams and bigger carbs (although these have smaller main jets than the standard GSX750ES). These are supposed to be about 90 bhp and Suzuki UK imported 33 of these along with the Japanese model for their limited import. Source{| class="wikitable" |- !Make Model |Suzuki GSX 750SD Katana |- !Year |1983 |- !Engine Type |Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |- !Displacement |747 cc / 45.5 cu-in |- !Bore X Stroke |67 x 53 mm |- !Cooling System |Air cooled |- !Compression |9.4:1 |- !Lubrication |Wet sump |- !Oil Capacity |3.2 Liters / 3.4 US qt / 2.8 Imp qt |- !Induction |4 x 32 mm Mikuni RS32SS carburetors. |- !Ignition |Transistorized |- !Ignition Timing |15º BTDC below 1500 rpm / 35º 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 |62.6 kW / 84 hp @ 9500 rpm |- !Max Torque |68 Nm / 6.93 kgf-m / 50.2 lb-ft @ 8500 rpm |- !Transmission |5 Speed constant mesh |- !Final Drive |Chain Daido D.I.D 630V, 96 links |- !Primary Reduction |2.162:1 (93/43) |- !Final Reduction |2.733:1 (41/15) |- !Gear Ratio |1st 2.571 (36/14) / 2nd 1.777 (32/18) / 3th 1.380 (29/21) / 4th 1.125 (27/24) / 5th 0.961 (25/26) |- !Frame |Steel, double cradle |- !Front Suspension |Telescopic, preload adjustable and hydraulic anti-dive. |- !Front Wheel Travel |150 mm / 5.91 in |- !Rear Suspension |Dual shocks, 5-way preload and 4-way rebound damping adjustable. |- !Rear Wheel Travel |109 mm / 4.29 in |- !Front Brakes |2 x 275mm Discs, 2 piston calipers |- !Rear Brakes |Single 255 mm disc, 1 piston caliper |- !Front Tire |3.25 H16 |- !Rear Tire |4.00 H17 |- !Caster |61º30" |- !Rake |30° |- !Trail |116 mm / 4.67 in |- !Dimensions |Length 2250 mm / 88.6 in Width 715 mm / 28.1 in Height 1195 mm / 47.0 in |- !Wheelbase |1520mm / 59.8 in. |- !Swat H Eight |775 mm / 30.5 in |- !Ground Clearance |175mm / 6.9 in |- !Dry Weight |228 kg / 503 lbs |- !Fuel Capacity |22 Liters / 5.8 US gal / 4.8 Imp gal |- !Standing ¼ Mile |11.9 sec / 182 km/h / 113 mph |- !Top Speed |215 km/h 134 mph
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