Suzuki GSX750SF Katana (1985-87)

The Suzuki GSX750SF Katana (1985-87) is a four-stroke, transverse four-cylinder, DOHC motorcycle with 747cc capacity and a bore x stroke of 67 x 53 mm. It has an air-cooled cooling system and a compression ratio of 9.4:1, with wet sump lubrication and a 4 x 32 mm Mikuni RS32SS carburetor induction. The motorcycle has a transistorized ignition and a battery of 12V 50.4 kC (14 Ah)/10HR – type YB14L-A2. It can reach a maximum power of 62.6 kW / 84 hp @ 9500 rpm and a maximum torque of 68 Nm / 6.93 kgf-m / 50.2 lb-ft @ 8500 rpm.

The Suzuki GSX750SF Katana (1985-87) uses a 5-speed constant mesh transmission, with a final drive of a chain and a primary reduction of 2.162:1 (93/43) and a final reduction of 2.733:1 (41/15). Its gear ratio includes 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), with a chain Daido D.I.D 630V, 96 links final drive.

The motorcycle has a steel, double cradle frame and a Telescopic, preload adjustable and hydraulic anti-dive front suspension with a front wheel travel of 150 mm / 5.91 in. Its rear suspension has dual shocks, 5-way preload and 4-way rebound damping adjustable, with a rear wheel travel of 109 mm / 4.29 in. The Suzuki GSX750SF Katana (1985-87) uses 2 x 275mm Discs, 2 piston calipers for its front brakes and a single 255 mm disc, 1 piston caliper for its rear brakes. It has front and rear tyres of 3.25 H16 and 4.00 H17, respectively, and a fuel capacity of 22 Litres / 5.8 US gal / 4.8 Imp gal.

The motorcycle’s dimensions include a length of 2250 mm / 88.6 in, width of 715 mm / 28.1 in, height of 1195 mm / 47.0 in, and a wheelbase of 1520mm / 59.8 in. It has a dry weight of 228 kg / 503 lbs and a ground clearance of 175mm / 6.9 in. The Suzuki GSX750SF Katana (1985-87) can achieve a standing 1/4 mile time of 11.9 sec / 182 km/h / 113 mph and has a top speed of 215 km/h 134 mph.

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Technical specifications:

Make Model: Suzuki GSX 750SF Katana

Year: 1985 – 87

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: 15 o BTDC below 1500 rpm / 35 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: 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: 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 Tyre: 3.25 H16

Rear Tyre: 4.00 H17

Caster: 61 o30″

Rake: 30 degrees

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 1/4 Mile: 11.9 sec / 182 km/h / 113 mph

Top Speed: 215 km/h 134 mph