| MODEL | SUZUKI GS 400T 1981 - 1983 |
| Year | 1981 - 1983 |
| Engine Type | Four stroke, parallel twin cylinder, DOHC, 2 valves per cylinder |
| Displacement / Capacity | 398 cc / 24.3 cu in |
| Bore X Stroke | 65 x 60 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Max Power | 19.7 kW / 26.8 hp @ 7400 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Wet, multi-disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic fork |
| Rear Suspension | Dual dampers, coil spring, 5-way adjustable |
| Front Brakes | Single disc |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 185 kg / 408 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.00-18 |
| Rear Tyre | 3.50-19 |
| FUEL SYSTEM | |
| Fuel Capacity | 14 L / 3.7 US gal / 3.0 Imp gal |
| Fuel Consumption | — |
| Top Speed | 150 km/h / 93.2 mph |
A detuned, more economical version of the 400 twin with lower power and compression than the earlier GS400E, built on the same basic air-cooled twin. It sold alongside the larger GS450.
