Sportbikes
1983Kawasaki GPZ 400
24 fields on record
The 1983 Kawasaki GPZ 400 is a lightweight sport-touring middleweight powered by a spirited 50 hp inline-four engine, making it an excellent choice for novice and budget-conscious riders seeking affordable performance. Known for its nimble handling, manageable weight of 202 kg, and reliable air-cooled mechanics, the GPZ 400 excels as an accessible entry-level sportbike and commuter.
- Capacity
- 399.0 ccm
- Engine
- In-line four
- Gearbox
- 6-speed
- Dry weight
- 178.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 50.3 HP (37.5 kW) @ 11500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed primarily as an accessible, revvy naked bike for spirited street riding rather than outright speed or long-distance comfort.
- Built for
- A high-revving in-line four with a smooth carbureted delivery that rewards keeping the engine spinning for its performance.
- Not ideal for
- Not a good match for riders seeking long-distance touring comfort, passenger practicality, or off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 399.0 ccm
- Power
- 50.3 HP (37.5 kW) @ 11500 RPM
- Torque
- 34.3 Nm (3.5 kgf-m)
- Engine type
- In-line four
- Power/weight ratio
- 0.2826 HP/kg (dry)
- Bore x stroke
- 55.0 x 42.0 mm
- Compression
- 9.7:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Valves per cylinder
- 2
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 142.0 km/h (88.2 mph)
Dimensions & weight
- Wheelbase
- 1445 mm
- Dry weight
- 178.0 kg
- Wet weight
- 202.0 kg
- Fuel capacity
- 18.00 litres
- Seat height
- Not on record - add it
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Single disc
- Front tyre
- 90/90-19
- Rear tyre
- 110/90-18
Other
- Comments
- Listed power is the full-power version (51 PS); the West German insurance-class version was rated 20 kW (27 PS).
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1983 | 1984 | 1985 | 1989 |
|---|---|---|---|---|
| Capacity | 399 cc | 399 cc | 399 cc | 399 cc |
| Dry weight | 178 kg | — | — | — |
| Fuel capacity | 18 L | 18 L | 18 L | — |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Kawasaki GPZ 400?
The 1983 Kawasaki GPZ 400 has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Kawasaki GPZ 400 have?
The 1983 Kawasaki GPZ 400 has a Power of 50.3 HP (37.5 kW) @ 11500 RPM.
How many gears does the Kawasaki GPZ 400 have?
The 1983 Kawasaki GPZ 400 has a Gearbox of 6-speed.
What is the torque of the Kawasaki GPZ 400?
The 1983 Kawasaki GPZ 400 has a Torque of 34.3 Nm (3.5 kgf-m or 25.3 ft.lbs).
How much does the Kawasaki GPZ 400 weigh?
The 1983 Kawasaki GPZ 400 has a Dry weight of 178.0 kg (392.4 pounds).
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