Suzuki GS750GL (1981)

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The Suzuki GS750GL is a motorcycle that was first introduced in 1981. It is a four-stroke, air-cooled bike with a capacity of 748cc. The engine has four cylinders and is transverse, with double overhead camshafts and two valves per cylinder. The compression ratio of the bike is 8.7:1 and lubrication uses a wet sump.

The bike features four Mikuni VM26SS carburetors and a battery coil ignition system. It has a maximum power output of 68hp at 8500 rpm, and its maximum torque is 60 Nm at 8250 rpm. The bike has both electric and kick start capabilities.

The Suzuki GS750GL has a wet multi-plate clutch and a five-speed transmission. Its final drive is a shaft-based system, with a primary reduction ratio of 2.152 (99/46) and a final reduction ratio of 2.733 (41/15). The bike’s gear ratio is 1st 2.571 (36/14) / 2nd 1.777 (32/18) / 3rd 1.380(29/21) / 4th 1.125 (27/24) / 5th 0.961 (25/26).

The front suspension of the bike is a 35mm Kayaba system with adjustable air pressure and anti-dive technology. The rear suspension is a dual-shock system with adjustable preload and spring rebound damping. The front brakes are dual 292mm discs with single-piston calipers, while the rear brake is a single 292mm disc with a single-piston caliper.

The bike has a wheelbase of 1490mm and a ground clearance of 150mm. It weighs 249kg and has a fuel capacity of 18 litres, with an additional 2 litres in reserve. Overall, the Suzuki GS750GL is a powerful and versatile motorcycle that offers a smooth ride and reliable performance.

Technical specifications:

Make Model: Suzuki GS 750GL

Year: 1981


Engine: Four stroke, transverse four cylinders, DOHC, 2 valve per cylinder.
Capacity: 748 cc / 45.6 cu in
Bore x Stroke: 65 x 56.4 mm
Cooling System: Air cooled
Compression Ratio: 8.7:1
Lubrication: Wet sump
Induction: 4 x Mikuni VM26SS carburators
Ignition: Battery coil
Battery: 12V 14AH/10 hr.
Generator: 3 ph. AC
Spark plug type: NGK B8ES
Starting: Electric & kick
Max Power: 50.7 kW / 68 hp @ 8500 rpm
Max Torque: 60 Nm / 6.1 kgf-m / 44.2 lb-ft @ 8250 rpm
Clutch: Wet multi-plate

Transmission: 5 Speed
Final Drive: Shaft
Primary reduction: 2.152 (99/46)
Final reduction: 2.733 (41/15)
Gear Ratio: 1st 2.571 (36/14) / 2nd 1.777 (32/18) / 3rd 1.380(29/21) / 4th 1.125 (27/24) / 5th 0.961 (25/26)
Front Suspension: 35 mm Kayaba with anti dive adjustable air pressure.
Rear Suspension: Dual shocks adjustable preload and spring rebound damping.
Front Brakes: 2 x 292mm discs, 1 piston calipers
Rear Brakes: Single 292mm disc, 1 piston caliper
Front Tyre: 3.25 H19
Rear Tyre: 4.00 H18
Steering Angle: 40 degrees
Caster: 63 degrees
Trail: 107 mm / 4.21 in
Turning radius: 2.5 m / 8.5 ft
Dimensions: Length 2213 mm / 87.2 in Width 875 mm / 34.4 in Height 1170 mm / 46.1in
Wheelbase: 1490 mm./ 58.7 in
Ground clearance: 150 mm / 5.9 in
Dry Weight: 249 kg / 548 lbs
Fuel Capacity: 18 Litres / 4.8 US gal / 4.0 Imp gal

Reserve: 2 Litres / 0.5 US gal / 0.44 Imp gal

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