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1980 Suzuki GS 750E Overview
Suzuki GS 750E is a naked bike motorcycle, displacing 748 cc. Power comes from a Four stroke, transverse four cylinders, DOHC, 2 valve per cylinder engine, a compression ratio of 8.7:1. On the performance side, it delivers 53.6 kW @ 8500 rpm of peak power and 60 Nm @ 8250 rpm of torque. Top speed is factory-quoted at 180 km/h. On the road, the 1980 GS 750E tips the scales at 223 kg, carries a 18-litre fuel tank and spans a 1490 mm wheelbase. That's roughly 14.5 kg heavier than the average naked bike motorcycle in our database. The full 1980 Suzuki GS 750E spec sheet below covers every technical detail, from suspension travel to tyre sizes.
1980 GS 750E - Pros & Cons
Strengths
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Strong power output: With 53.6 kW @ 8500 rpm and 60 Nm @ 8250 rpm of torque on tap, the GS 750E is no slouch for its class.
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Large fuel range: A 18-litre tank means fewer stops on longer rides - a genuine plus for touring or a lengthy daily commute.
Considerations
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Carburetor fuelling: Expect to spend more time keeping the carbs in tune, especially after long storage periods or a change in altitude.
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Chain final drive upkeep: Budget time for routine chain maintenance - it's cheap to replace but needs consistent attention to avoid premature sprocket wear.
Wear Points & Servicing Notes
Heat management in traffic
Because the GS 750E relies on airflow rather than a coolant jacket, expect noticeably more radiant heat at low speed and in traffic. It's inherent to air cooling, and ventilated gear largely offsets it.
Carburetor maintenance
Carburetors on the GS 750E need periodic attention - pilot jets and float needles are the first parts to gum up after the bike sits, and the first thing to check if idle or throttle response degrades.
Brake disc and pad wear
Braking up front comes from Single 292 mm disc, 1 piston caliper - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.
Suspension condition on used examples
The GS 750E's suspension runs 35mm Kayaba with anti dive adjustable air pressure at the front. The rear uses Dual shocks adjustable preload and spring rebound damping. Fork-seal condition and rear linkage play are the two things worth checking before buying used.
Final drive maintenance
The GS 750E uses chain final drive, which is cheap to replace but needs regular cleaning, lubrication and tension checks to get a full service life out of the sprockets.
Handling the weight at a standstill
223 kg puts the GS 750E toward the heavier end of its class. It's most noticeable at walking pace; once underway the mass settles into the handling rather than fighting it.
GS 750E - Buying & Maintenance Guide
What to check before buying
Before handing over money for a used 1980 Suzuki GS 750E, cover the fundamentals: service book and oil change history, chain and sprocket wear, and any sign of oil weeping around the casings. Cold-starting it yourself tells you a lot - a healthy GS 750E should catch quickly and settle into a smooth idle.
Oil and filter changes
Nothing protects a GS 750E's engine like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.
Carburetor upkeep
Deposits in the carbs are the usual culprit behind poor running on a stored GS 750E - strip and clean the float bowls before the first start. Pilot jets clog first and get overlooked most, so make a point of checking them.
1980 Suzuki GS 750E - Frequently Asked Questions
What engine does the 1980 Suzuki GS 750E have?
The 1980 Suzuki GS 750E uses a Four stroke, transverse four cylinders, DOHC, 2 valve per cylinder. engine with 748 cc of displacement. It is air cooled.
What is the top speed of the 1980 Suzuki GS 750E?
The 1980 Suzuki GS 750E has a factory-quoted top speed of 180 km/h. Real-world speeds vary depending on rider weight, conditions and state of tune.
How much does the 1980 Suzuki GS 750E weigh?
The 1980 Suzuki GS 750E weighs 223 kg. This is the manufacturer's dry figure.
How much power does the 1980 Suzuki GS 750E make?
The 1980 Suzuki GS 750E produces 53.6 kW @ 8500 rpm of power and 60 Nm @ 8250 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 1980 Suzuki GS 750E?
The 1980 Suzuki GS 750E has a 18-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 300-360 km between stops.
What brakes does the 1980 Suzuki GS 750E have?
The 1980 Suzuki GS 750E uses Single 292 mm disc, 1 piston caliper at the front and Single 292 mm disc ,1 piston caliper at the rear.
What tyre sizes does the 1980 Suzuki GS 750E use?
The 1980 Suzuki GS 750E runs 3.25 H19 front and 4 H18 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 1980 Suzuki GS 750E have?
The 1980 Suzuki GS 750E is fitted with a 5 Speed transmission.
Suzuki GS 750E Spec Evolution
The Suzuki GS 750E was produced across 4 model years (1978-1981). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
1978 |
1979 |
1980 |
1981 |
| Top Speed |
180 km/h / 112 mph |
180 km/h / 112 mph |
180 km/h / 112 mph |
198.0 km/h / 123.0 mph |
| Fuel Capacity |
18 Litres / 4.8 US gal / 4.0 Imp gal |
18 Litres / 4.8 US gal / 4.0 Imp gal |
18 Litres / 4.8 US gal / 4.0 Imp gal |
18.00 litres / 4.76 gallons |
| Brakes - Front |
Single 292 mm disc, 1 piston caliper |
Single 292 mm disc, 1 piston caliper |
Single 292 mm disc, 1 piston caliper |
Dual disc |
| Brakes - Rear |
Single 292 mm disc ,1 piston caliper |
Single 292 mm disc ,1 piston caliper |
Single 292 mm disc ,1 piston caliper |
Single disc |
| Final Drive |
Chain, 630SO 96 link, O-ring .81/2 in. free-play |
Chain, 630SO 96 link, O-ring .81/2 in. free-play |
Chain, 630SO 96 link, O-ring .81/2 in. free-play |
Chain |
| Tyres - Front |
3.25 H19 |
3.25 H19 |
3.25 H19 |
3.25-19 |
| Tyres - Rear |
4.00 H18 |
4.00 H18 |
4.00 H18 |
4.00-18 |
Key Specifications
Engine
Four stroke, transverse four cylinders, DOHC, 2 valve per cylinder.
Power
53.6 kW / 72 hp @ 8500 rpm
Torque
60 Nm / 6.1 kgf-m / 44.2 lb-ft @ 8250 rpm
Top Speed
180 km/h / 112 mph
Fuel Capacity
18 Litres / 4.8 US gal / 4.0 Imp gal
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Full 1980 Suzuki GS 750E Specifications
Year
1980
Make Model
Suzuki GS 750E
Wheelbase
1490 mm / 58.7 in
Ground Clearance
150 mm / 5.9 in
Height
1170 mm / 46.1in
Length
2225 mm / 87.6 in
Turning Circle
2.5 m / 8.5 ft
Width
870 mm / 34.3 in
Dry Weight
223 kg / 492 lbs.
Fuel Capacity
18 Litres / 4.8 US gal / 4.0 Imp gal
Displacement
748 cc / 45.6 cu in
Engine Detail
Four stroke, transverse four cylinders, DOHC, 2 valve per cylinder.
Bore x Stroke
65 x 56.4 mm
Compression Ratio
8.7:1
Cooling System
Air cooled
Fuel Consumption
6.4 L/100 km / 15.6 km/l / 36.7 US mpg / 44.1 Imp mpg
Fuel Induction
4 x Mikuni VM26SS carburators
Fuel Reserve
2 Litres / 0.5 US gal / 0.44 Imp gal
Ignition
Battery, coil
Lubrication
Wet sump
Spark Plug
NGK B8ES
Starter
Electric & kick
Battery Capacity
12V 14AH/10 hr.
Clutch
Wet multi-plate
Final Drive
Chain, 630SO 96 link, O-ring .81/2 in. free-play
Final Drive Ratio
2.733 (41/15)
Gear Ratios
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)
Primary Drive Ratios
2.152 (99/46)
Transmission / Drive
5 Speed
Suspension - Front
35mm Kayaba with anti dive adjustable air pressure.
Suspension - Rear
Dual shocks adjustable preload and spring rebound damping.
Steering Angle
40°
Steering Head Angle
63°
Trail
107 mm / 4.21 in
Brakes - Front
Single 292 mm disc, 1 piston caliper
Brakes - Rear
Single 292 mm disc ,1 piston caliper
Tyres - Front
3.25 H19
Tyres - Rear
4.00 H18
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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