2004 Kawasaki Ninja Fuel system Problems
- Complaints
- 3about this part
- Share
- 43%of 7 total for the year
- Median mileage
- 1,396miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the fuel system of the 2004 Kawasaki Ninja, 43% of the 7 complaints for this model year. Where a mileage was given, the median is 1,396 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Letter regarding a possible defect in the diaphragm in the fuel tap. The bike did not run due to trash getting inside of the fuel tank. The bike also stalled when it reached a speed of 53 MPH. The consumer discovered there was no gas in the fuel line, fuel filter or the carburetors. The consumer fixed the problem by removing the diaphragm and replacing it with a solid rubber seal and re-tightened the four bolts that held the fuel tap together.”
NHTSA complaint #10072117, filed 2004-04, 2,750 miles“Issue: a failure of the water temperature sensor causes a surge in power. Description of events leading to failure: was moving a 2004 Kawasaki Ninja zx-6rr in a parking lot, cold weather (35 degrees). At a constant speed, the bike surged in RPM, causing the rear tire to break traction, crashing the bike. No one else was involved. As per the debug steps in the service manual, the efi computer held a service code for a water temperature sensor failure in the history (bike has 1200 miles on it). …”
NHTSA complaint #10102385, filed 2004-12, 42 miles“Kawasaki motorcycle recall customer states that kawaski doesn't want him to ride the bike to the dealership so they should pay for the tow truck charge *”
NHTSA complaint #10199242, filed 2007-08Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2004 | 3 | 43% |
| 2000 | 2 | 25% |
Other parts of the 2004 Kawasaki Ninja
2 complaintsExterior lighting
1 complaintsOther or unknown
1 complaintsVehicle speed control
1 complaintsWheels
1 complaints
← All problems reported for the 2004 Kawasaki Ninja
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology