Suzuki GSX400FW (1984-87)

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The Suzuki GSX 400FW is a four stroke, liquid cooled motorcycle produced from 1984 to 1987. Its engine has a capacity of 398 cc with a bore x stroke of 53 x 45.2 mm and a compression ratio of 10.9:1. The bike uses 2 x Mikuni BS26SS carburetors for induction and features fully transistorised ignition and electric starting with a 12V, 12Ah battery. It can produce a maximum power of 36.9 kW / 49.5 hp @ 10500 rpm with a maximum torque of 35.3 Nm / 3.6 kgf-m / 26.0 lb-ft @ 8500 rpm. The clutch is wet with a multiplate transmission that has 6 speeds and a final drive with a chain. The bike has telescopic fork, oil dampened front suspension with 150 mm / 5.9 in wheel travel and a swingarm, mono shock rear suspension with 107 mm / 4.2 in wheel travel. Braking is achieved through 2 x discs at the front and a single disc at the rear. The bike has a length of 2110 mm / 83.1 in, a width of 745 mm / 29.3 in, and a height of 1180 mm / 46.5 in with a wheelbase of 1435 mm / 56.5 in. The bike has a ground clearance of 160 mm / 6.3 in, a seat height of 780 mm / 30.7 in, and a dry weight of 177 kg / 390 lbs.

Technical specifications:

Make Model: Suzuki GSX 400FW

Year: 1984 – 87


Engine: Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder.
Capacity: 398 cc / 24.3 cu in
Bore x Stroke: 53 x 45.2 mm
Compression Ratio: 10.9:1
Cooling System: Liquid cooled
Lubrication System: Wet sump
Induction: 2 x Mikuni BS26SS carburetors
Ignition: Fully transistorised
Starting: Electric
Battery: 12V, 12Ah
Max Power: 36.9 kW / 49.5 hp @ 10500 rpm
Max Torque: 35.3 Nm / 3.6 kgf-m / 26.0 lb-ft @ 8500 rpm
Clutch: Wet, multiplate
Transmission: 6 Speed
Final Drive: Chain

Primary Reduction: 2.212
Final Reduction: 3.066
Gear Ratios: 1st 3.166 (38/12) / 2nd 2.125 (34/16) / 3rd 1.631 (31/19) / 4th 1.333 (28/21) / 5th 1.173 (27/23) / 6th 1.083 (26/24)
Front Suspension: Telescopic fork, oil dampened
Front Wheel Travel: 150 mm / 5.9 in
Rear Suspension: Swingarm, mono shock
Rear Wheel Travel: 107 mm / 4.2 in
Front Brakes: 2 x Discs
Rear Brakes: Single disc
Front Tyre: 100/90-16 54S
Rear Tyre: 110/90-18 61S
Rake: 27.2 degrees
Trail: 96 mm / 3.8 in
Dimensions: Length: 2110 mm / 83.1 inWidth: 745 mm / 29.3 in Height: 1180 mm / 46.5 in
Wheelbase: 1435 mm / 56.5 in
Ground Clearance: 160 mm / 6.3 in
Seat Height: 780 mm / 30.7 in
Dry Weight: 177 kg / 390 lbs

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