Suzuki GS550E (1978-79)

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The Suzuki GS550E (1978-79) motorcycle is a four-stroke, transverse four cylinders, DOHC, 2 valves per cylinder bike. It has a 549cc/33.5cu in capacity and a compression ratio of 8.6:1, with air-cooling and induction through 4 x VM22SS Mikuni carburetors. It has a battery and coil ignition and an electric starting mechanism. The motorcycle’s maximum power output is 35.8 kW/49 hp at 9000 rpm, with a maximum torque of 42 Nm at 7500 rpm. The clutch is a wet, 15 multi-plate system, with a 6-speed transmission and chain final drive. The motorcycle’s suspensions include a telescopic fork, oil-damped front suspension and twin shocks, coil over, and 5-way adjustable spring load in the rear. The brakes consist of a single 275mm disc, one-piston caliper front brake and drum rear brake. It has a rake of 29o and a trail of 119.9 mm/4.7, with a dry weight of 195 kg/430 lbs, and a wet weight of 216 kg/476 lbs. The motorcycle has a fuel capacity of 17 litres/4.5 US gal/3.7 Imp gal and an average consumption of 5.6 L/100 km/42 mpg/50.4 Imp mpg. Its standing 1/4 mile time is 13.7 sec/152 km/h/94.7 mph, and its top speed is 181 km/h/ 112 mph.

Technical specifications:

Make Model: Suzuki GS 550E

Year: 1978 – 79


Engine: Four stroke, transverse four cylinders, DOHC, 2 valves per cylinder.
Capacity: 549 cc / 33.5 cu in
Bore x Stroke: 56 x 55.8 mm
Compression Ratio: 8.6:1
Cooling System: Air cooled
Induction: 4 x VM22SS Mikuni carburetors
Ignition: Battery and Coil
Starting: Electric
Max Power: 35.8 kW / 49 hp @ 9000 rpm
Max Torque: 42 Nm 4.3 kgf-m / 31 lb-ft @ 7500 rpm
Clutch: Wet, 15 multi-plate
Transmission: 6 Speed
Final Drive: Chain
Primary Ratio: 1.977:1
Front Suspension: Telescopic fork, oil damped

Rear Suspension: Twin shocks, coil over, 5-way adjustable springload
Front Brakes: Single 275mm disc, 1 piston caliper
Rear Brakes: Drum
Front Tyre: 3.25-19
Rear Tyre: 3.75-18
Rake: 29o
Trail: 119.9 mm / 4.7
Dry Weight: 195 kg / 430 lbs
Wet Weight: 216 kg / 476 lbs
Fuel Capacity: 17 Litres / 4.5 US gal / 3.7 Imp gal
Consumption Average: 5.6 L/100 km / 42 mpg / 50.4 Imp mpg
Standing 1/4 Mile: 13.7 sec / 152 km/h / 94.7 mph
Top Speed: 181 km/h / 112 mph

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