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Engine coolingPart report

2004 Yamaha FZ6 Engine cooling Problems

Complaints
2about this part
Share
6%of 34 total for the year
Median mileage
300miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the engine cooling of the 2004 Yamaha FZ6, 6% of the 34 complaints for this model year. Where a mileage was given, the median is 300 miles.

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.

“Motorcycle shuts off after reducing throttle during deceleration and during shifting. Many riders of the same model motorcycle have reported the same problem. This is dangerous because the bike is w/o power and sometimes during downshifting the rear tire loses traction and causes the bike to slide sideways.”

NHTSA complaint #10161468, filed 2006-07, 300 miles

“1. Bike started and warmed up fine. After about an hour of riding bike was idling very low at a stop sign (800-900 RPM). Power delivery was choppy from a stop also. At the next stop light the bike stalled, and I needed to use the throttle to keep it idling . I shut the bike off at some point, turned it back on and the bike was back to normal. After about 10 more minutes of riding the bike stalled at another stop light. Since first occurrence this problem has been intermittent but usually goes away if the bike is shut off, then turned back on. .”

NHTSA complaint #10134693, filed 2005-08

Engine cooling: other model years

YearComplaintsShare of year
2005643%
200426%

Other parts of the 2004 Yamaha FZ6

Fuel system
21 complaintsElectrical system
6 complaintsVehicle speed control
6 complaintsOther or unknown
1 complaintsTransmission and drivetrain
1 complaints

← All problems reported for the 2004 Yamaha FZ6

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