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Suzuki GSX 750S3 Katana

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Make Model

Suzuki GSX 750S3 Katana 

Year

1984

Engine

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

Capacity

747 cc / 45.5 cu-in
Bore x Stroke 67 x 53 mm
Cooling System Air cooled
Compression Ratio 9.4:1
Lubrication Wet sump
Oil Capacity 3.2 Litres / 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
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
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)
Final Drive Chain Daido D.I.D 630V, 96 links
Frame Steel, double cradle

Front Suspension

Telescopic, preload adjustable and hydraulic anti-dive.
Front Wheel Travel 150 mm / 5.91 in

Rear Suspension

Monoshock
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 Tyre

3.25 H16

Rear Tyre

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 Litres / 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

Suzuki created the 750cc version for people who liked the look of the larger edition but wanted something not as bulky.  An upgraded model was released in 1982 (the Mark II) and then in late 1984 came the final version, the Mark III.

While the Mark III still had the the overall design look from previous generations, the engine was a new 16-value unit taken from the forebearer of the GSXR, the GSX750E.  The new engine offered right around 84 bhp and the Mark III came with upgraded suspension both front and rear. The Mark III was also more comfortable due to a lower seat height and higher handlebars, which reduced the stretch to the grips and resulting knee bend. And last but not least (no pun intended) weight was also reduced by 16 kilos. All the changes resulted in a bike which was a big improvement over the previous version and also handled better than the UJM Suzuki GSX750.

Of course the tech improvements weren't the only changes that put the 750se on a lot of wish lists.  The look of the bike caused a big reaction with a multi-toned paint scheme that was a big change from the all silver 1000 version.  And perhaps most noticeable of all was a new all black fairing which included a retractable/pop-up headlight.

As the folks as Two Wheels wrote, "the katana looks like it's going fast even when its barely moving but so do a lot of bikes.   The thing about the 750SE Katana is that it looks like its on its way to future while others are just treading water in the present."