Naked Motorcycles
1989Kawasaki Gpz 400
12 fields on record
The 1989 Kawasaki GPz 400 is an accessible naked bike that suits beginner and intermediate riders seeking an affordable, reliable machine. Powered by a spirited 399cc four-cylinder engine producing 51 horsepower, it delivers engaging performance and excellent fuel efficiency. Known for its lightweight handling and practical six-speed transmission, the GPz 400 remains a popular choice for urban commuting and weekend riding.
- Capacity
- 399.0 ccm
- Engine
- In-line four
- Gearbox
- 6-speed
- Dry weight
- Not on record
Know it? Add it → - Seat height
- Not on record
Know it? Add it → - Power
- 51.0 HP (37.5 kW)
What’s new for the 1989 Kawasaki Gpz 400
vs the 1985| Spec | 1985 | 1989 |
|---|---|---|
| Power | 50.0 HP (36.8 kW) @ 10500 RPM | 51.0 HP (37.5 kW) |
| Top speed | 175.0 km/h (108.7 mph) | not listed |
| Wet weight | 202.0 kg (445.3 pounds) | not listed |
| Fuel capacity | 18.00 litres (4.76 US gallons) | not listed |
| Front brakes | Dual disc | not listed |
| Rear brakes | Single disc | not listed |
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
- 51.0 HP (37.5 kW)
- Engine type
- In-line four
- Bore x stroke
- 55.0 x 42.0 mm
- Compression
- 9.7:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Valves per cylinder
- 4
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
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 1989 Kawasaki Gpz 400 has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Kawasaki Gpz 400 have?
The 1989 Kawasaki Gpz 400 has a Power of 51.0 HP (37.5 kW).
How many gears does the Kawasaki Gpz 400 have?
The 1989 Kawasaki Gpz 400 has a Gearbox of 6-speed.
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