Sportbikes
1984Kawasaki GPZ 400
20 fields on record
The 1984 Kawasaki GPZ 400 is a lightweight sport bike ideal for novice and intermediate riders seeking an affordable, nimble machine. Its 399cc four-cylinder engine delivers smooth power with excellent fuel efficiency, while the compact 202kg frame ensures responsive handling and easy maneuverability. Best known for reliability and accessibility, it remains a classic entry-level sportster.
- Capacity
- 399.0 ccm
- Engine
- In-line four, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 202.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 50.0 HP
What’s new for the 1984 Kawasaki GPZ 400
vs the 1983| Spec | 1983 | 1984 |
|---|---|---|
| Engine capacity | 399.00 ccm (24.35 cubic inches) | 399.0 ccm (24.35 cubic inches) |
| Power | 27.00 HP | 50.0 HP |
| Top speed | 142.0 km/h (88.2 mph) | 175.0 km/h (108.7 mph) |
| Fuel capacity | 18.00 litres (4.76 gallons) | 18.00 litres (4.76 US gallons) |
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
- 50.0 HP
- Engine type
- In-line four, four-stroke
- Power/weight ratio
- 0.2475 HP/kg
- Bore x stroke
- 55.0 x 42.0 mm
- Compression
- 9.7:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Valves per cylinder
- 2
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 175.0 km/h (108.7 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Single disc
- Front tyre
- 100/90-18
- Rear tyre
- 110/80-18
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 | 399.00 ccm (24.35 cubic inches) | 399.00 ccm (24.35 cubic inches) | 399.00 ccm (24.35 cubic inches) | 399.00 ccm (24.35 cubic inches) |
| Fuel capacity | 18.00 litres (4.76 gallons) | 18.00 litres (4.76 gallons) | 18.00 litres (4.76 gallons) | — |
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 1984 Kawasaki GPZ 400 has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Kawasaki GPZ 400 have?
The 1984 Kawasaki GPZ 400 has a Power of 50.0 HP.
How many gears does the Kawasaki GPZ 400 have?
The 1984 Kawasaki GPZ 400 has a Gearbox of 6-speed.
How much does the Kawasaki GPZ 400 weigh?
The 1984 Kawasaki GPZ 400 has a Wet weight of 202.0 kg (445.3 pounds).
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