Suzuki GSX1100EF (1984)

The 1984 Suzuki GSX1100EF is a motorcycle with a four-stroke, transverse four-cylinder engine with DOHC and 4 valves per cylinder. It has a 1135cc capacity with a compression ratio of 9.7:1 and is air-cooled with wet sump lubrication. The bike has 4 x 36mm Mikuni carburetors, analogue CDI ignition, and electric starting. It produces a maximum power of 85 kW / 114 hp at 8,700 rpm and a maximum torque of 98 Nm / 72.3 lb-ft at 6,500 rpm. The bike has a wet, multiple disc, cable-operated clutch and a 5-speed transmission with a chain final drive. It has a steel, double cradle frame with a 37mm Kayaba air-assisted front suspension and a single Kayaba shock rear suspension. The front brakes are 2 x 275mm discs with 2 piston calipers, while the rear brakes are a single 275mm disc with 1 piston caliper. The bike has a length of 2240mm, a width of 730mm, and a height of 1280mm, with a wheelbase of 1550mm and a ground clearance of 155mm. The dry weight of the bike is 238kg, and fuel capacity is 20 litres. It has an average fuel consumption of 6.2 L/100 km and a top speed of 225 km/h. A 1985 motosprint group test review reported a standing 1/4 mile time of 11.1 sec at 197.9 km/h / 123 mph.

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Technical specifications:

Make Model: Suzuki GSX 1100EF (GS 1150EF)

Year: 1984

Engine: Four stroke, transverse four cylinders, DOHC, 4 valves per cylinder,

Capacity: 1135 cc / 69.35 cu-in

Bore x Stroke: 74 x 66 mm

Cooling System: Air cooled

Compression Ratio: 9.7:1

Lubrication: Wet sump

Induction: 4 x 36mm Mikuni carburetors

Ignition: Analogue CDI (Capacitive Discharge Ign.)

Starting: Electric

Battery: 12V, 14Ah

Max Power: 85 kW / 114 hp @ 8.700 rpm

Max Torque: 98 Nm / 10.0 kgf-m / 72.3 lb-ft @ 6500 rpm

Clutch: Wet, multiple discs, cable operated

Transmission: 5 Speed

Final Drive: Chain

Primary Reduction Ratio: 1.780

Gear Ratios: 1st 2.500 / 2nd 1.777 / 3rd 1.380 / 4th1.125 / 5th 0.961

Final Reduction Ratio: 2.800

Frame: Steel, double cradle frame

Front Suspension: 37mm Kayaba air assisted, adjustable spring preload and compression damping.

Front Wheel Travel: 150 mm / 5.9 in

Rear Suspension: Single Kayaba shock, adjustable spring preload and rebound damping.

Rear Wheel Travel: 114 mm / 4.4 in

Front Brakes: 2 x 275 mm Discs, 2 piston calipers

Rear Brakes: Single 275 mm disc, 1 piston caliper

Front Tyre: 110/90-V16

Rear Tyre: 130/90-V17

Dimensions: Length 2240 mm / 88.2 in Width 730 mm / 28.7 in Height 1280 mm / 50.4 in

Wheelbase: 1 550 mm / 61.0 in

Ground Clearance: 155 mm / 6.1 in

Seat Height: 835 mm / 32.9 in

Dry Weight: 238 kg / 524 lbs

Wet Weight: 256 kg / 56.43 lbs

Fuel Capacity: 20 Litres / 5.2 US gal / 4.4 Imp gal

Consumption Average: 6.2 L/100 km / 16.2 km/l / 38.2 US mpg / 45.9 Imp mpg

Standing 1/4 Mile: 11.1 sec / 197.9 km/h / 123 mph

Top Speed: 225 km/h / 140 mph

Road Test: Group Test 1985 Motosprint