Across 5 covered model years from 1999 to 2023, the Kawasaki KLX300R has listed fuel capacities ranging from 2.1 US gal (7.95 L) to 2.6 US gal (9.84 L), depending on model year.
Kawasaki KLX300R fuel tank overview
Across the supplied years, the Kawasaki KLX300R sits around a compact tank based on its listed capacity.
Compact Tank
Fuel-tank size comparison
The representative 2.35 US gal (8.89 L) tank is smaller than the median among the 388 Kawasaki motorcycles in this dataset. The comparison-group median is 4.15 US gal (15.71 L).
Kawasaki motorcycles
Fuel capacity across model years
This shows the smallest and largest supplied tank capacities for this model.
1.9 L spread
Kawasaki KLX300R fuel & related specs
| Model years covered | 1999, 2008, 2020, 2021, 2023 |
|---|---|
| Fuel capacity | 2.1 US gal (7.95 L) to 2.6 US gal (9.84 L) |
| Engine displacement | 292 cc to 300 cc |
| Dry weight | 233.7 lb (106 kg) to 282.2 lb (128 kg) |
Kawasaki KLX300R 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 |
|---|---|---|---|---|
| 2008 | 2.6 US gal (9.84 L) | — | — | — |
| 2020 | 2.6 US gal (9.84 L) | — | — | — |
| 2021 | 2.1 US gal (7.95 L) | — | — | — |
| 2023 | 2.1 US gal (7.95 L) | — | — | — |
Fuel capacity changes by model year
Grouped values below show where supplied tank, reserve, consumption or calculated-range figures differ across the covered years.
Useful fuel calculations
These are calculated from the supplied specifications; they are not guaranteed real-world figures.
| Approx. fuel weight with a full tank | 13.1 lb (5.9 kg) to 16.2 lb (7.3 kg) |
|---|
What the fuel numbers tell you
Kawasaki KLX300R fuel capacity FAQ
How big is the Kawasaki KLX300R fuel tank?
The supplied model-year specifications list fuel capacity at 2.1 US gal (7.95 L) to 2.6 US gal (9.84 L).
Did the Kawasaki KLX300R fuel capacity change by year?
Yes. Across the supplied comparable years, listed capacity ranges from 2.1 US gal (7.95 L) to 2.6 US gal (9.84 L). Check the year table for the exact model year.
How much does a full tank of fuel weigh on the Kawasaki KLX300R?
Using approximately 0.745 kg per litre for gasoline, the listed tank capacity represents about 13.1 lb (5.9 kg) to 16.2 lb (7.3 kg) of fuel.
What engine size does the Kawasaki KLX300R have?
The supplied displacement figures span 292 cc to 300 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.