Suzuki GSX-R400 R (1989-90)

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The Suzuki GSX-R 400R is a sports motorcycle manufactured from 1989-1990. It has a four-stroke, transverse four-cylinder, DOHC engine with 4 valves per cylinder and TSCC. The bike’s capacity is 398 cc/24.3 cu-in, bore x stroke: 56 x 40.4 mm, and a compression ratio of 11.8:1. The lubrication is a wet sump, with a cooling system of liquid cooled. Its induction is Slingshot carburetors, with CDI ignition. The bike has a headlight of 12V 35/35w x 2 and starting system of electric. The max power of the bike is 44 kW / 59 hp @ 11000 rpm, and its max torque is 39.2 Nm / 4.0 kgf-m / 28.9 lb-ft @ 9000 rpm. The bike has a 6-speed, constant mesh transmission, with a final drive of chain, primary reduction ratio of 2.212, and final drive ratio of 3.066. The frame is an aluminum angular pipe double cradle. The bike has telescopic forks as front suspension, and a full floater swing arm, non-adjustable as back suspension, with brakes of 2 x Discs, 4 piston calipers front and rear brakes: Single disc, 2 piston caliper. The bike’s length is 1995 mm, width is 695 mm, and height is 1110 mm; the wheelbase is 1375 mm, ground clearance is 125 mm, and seat height is 735 mm. The bike weighs 160 kg and has a fuel capacity of 15 litres.

Technical specifications:

Make Model: Suzuki GSX-R 400R

Year: 1989 – 90


Engine: Four stroke, transverse four cylinder, DOHC 4 valves per cylinder. TSCC
Capacity: 398 cc / 24.3 cu-in
Bore x Stroke: 56 x 40.4 mm
Lubrication: Wet sump
Cooling System: Liquid cooled
Compression Ratio: 11.8:1
Induction: Slingshot carburetors
Ignition: CDI
Headlight: 12V 35/35w x 2
Starting: Electric
Max Power: 44 kW / 59 hp @ 11000 rpm
Max Torque: 39.2 Nm / 4.0 kgf-m / 28.9 lb-ft @ 9000 rpm
Clutch: Wet multi-plate
Transmission: 6 Speed, constant mesh
Final Drive: Chain

Primary Reduction Ratio: 2.212
Final Drive Ratio: 3.066
Gear Ratio: 1st 3.166 / 2nd 2.125 / 3rd 1.631 / 4th 1.333 / 5th .173 / 6th 1.083
Frame: Aluminum angular pipe double cradle
Front Suspension: Telescopic forks
Rear Suspension: Full floater swing arm, non-adjustable
Front Brakes: 2 x Discs, 4 piston calipers
Rear Brakes: Single disc, 2 piston caliper
Front Tyre: 110/70-R17 53H
Rear Tyre: 140/60-R18 64H
Rake: 27 degrees 25′
Trail: 96 mm / 3.7 in
Dimensions: Length 1995 mm / 78.5 in Width 695 mm / 27.4 in Height 1110 mm / 43.7 in
Wheelbase: 1375 mm / 54.1 in
Ground Clearance: 125 mm / 4.9 in
Seat Height: 735 mm / 28.9 in
Dry Weight: 160 kg / 352 lbs
Fuel Capacity: 15 Litres / 3.96 US gal / 3.3 Imp gal

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