| MODEL | SUZUKI GSX-R 400 1987 |
| Year | 1987 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 398 cc / 24.3 cu in |
| Bore X Stroke | 53 x 45.2 mm |
| Compression Ratio | 11.5:1 |
| Cooling System | Liquid cooled |
| Max Power | 44 kW / 59 hp @ 11000 rpm |
| Max Torque | 39.2 Nm / 4.0 kgf-m / 28.9 lb-ft @ 9000 rpm |
| Ignition | CDI |
| Induction | 2 x AS27VW carburetors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6 speed, constant mesh |
| Clutch | Wet multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Aluminium 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 |
| DIMENSION SPECS | |
| Overall Length | 2090 mm / 82.3 in |
| Overall Width | 710 mm / 28.0 in |
| Overall Height | 1185 mm / 46.7 in |
| Seat Height | 780 mm / 30.7 in |
| Wheelbase | 1425 mm / 56.1 in |
| Ground Clearance | — |
| Dry Weight | 152 kg / 334 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/90-16 |
| Rear Tyre | 140/90-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 3.96 US gal / 3.3 Imp gal |
| Fuel Consumption | — |
| Top Speed | — |
For 1987 the GSX-R400 gained new wheels, twin round headlights, gold-coloured brake calipers and new paint and exhaust, according to Wikipedia, and a black and gold special edition was offered. It stayed a 59 hp, around 150 kg dry sportbike for the Japanese 400 class.
