Across 4 covered model years from 1974 to 1977, the Kawasaki Z 400 has a listed fuel capacity of 3.7 US gal (14 L).
Kawasaki Z 400 fuel tank overview
Across the supplied years, the Kawasaki Z 400 sits around a medium-capacity tank based on its listed capacity.
Medium-Capacity Tank
Fuel-tank size comparison
The representative 3.7 US gal (14 L) tank is close to the median among the 23 Kawasaki classic motorcycles in this dataset. The comparison-group median is 3.7 US gal (14 L).
Kawasaki classic motorcycles
Kawasaki Z 400 fuel & related specs
| Model years covered | 1974-1977 |
|---|---|
| Fuel capacity | 3.7 US gal (14 L) |
| Engine displacement | 399 cc |
| Wet / running weight | 412.3 lb (187 kg) |
Kawasaki Z 400 fuel capacity by year
A dash means the relevant figure was not supplied for that model year.
| Year | Fuel capacity | Reserve | Listed consumption | Est. full-tank range |
|---|---|---|---|---|
| 1974 | 3.7 US gal (14 L) | — | — | — |
| 1975 | 3.7 US gal (14 L) | — | — | — |
| 1976 | 3.7 US gal (14 L) | — | — | — |
| 1977 | 3.7 US gal (14 L) | — | — | — |
Fuel capacity changes by model year
Useful fuel calculations
These are calculated from the supplied specifications; they are not guaranteed real-world figures.
| Approx. fuel weight with a full tank | 23 lb (10.4 kg) |
|---|
What the fuel numbers tell you
Kawasaki Z 400 fuel capacity FAQ
How big is the Kawasaki Z 400 fuel tank?
The supplied model-year specifications list fuel capacity at 3.7 US gal (14 L).
Did the Kawasaki Z 400 fuel capacity change by year?
No change appears in the comparable supplied figures; the listed capacity is 3.7 US gal (14 L).
How much does a full tank of fuel weigh on the Kawasaki Z 400?
Using approximately 0.745 kg per litre for gasoline, the listed tank capacity represents about 23 lb (10.4 kg) of fuel.
What engine size does the Kawasaki Z 400 have?
The supplied displacement figures span 399 cc across the model years covered.
Is fuel capacity the same as usable riding fuel?
Not necessarily. Published tank capacity is a nominal total capacity. Real usable fuel can vary slightly with filling method, bike angle, tank design and when the low-fuel or reserve system is triggered.
Motorcycle specifications can vary by model year, market and equipment. Fuel capacity is a nominal published figure, while calculated fuel weight and range figures on this page are estimates derived from the supplied specifications. Real-world fuel economy and range vary with speed, riding style, load, weather, terrain, tune and fuel level. Confirm critical specifications in the owner’s manual or on the official Kawasaki website.