Problems owners report
Complaints filed with NHTSA about the 2005 Yamaha YP400, by the system named in each complaint. One complaint can name several.
- Engine and engine cooling3
- Electrical system2
- Engine1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Recalls
YAMAHA IS RECALLING 9,600 MY 2006-2007 CP250 AND MY 2005-2007 YP400 MOTORCYCLES. THE ENGINE COULD STALL AND BE DIFFICULT TO RESTART BECAUSE THE WIRE TERMINALS IN THE FUEL PUMP WIRE COUPLER HAVE CORRODED. WATER CAN ENTER FROM THE MAIN WIRE HARNESS END AND RUN THROUGH THE HARNESS TO THE FUEL PUMP COUPLER.
ON CERTAIN MOTORCYCLES, A LEAK AT THE FUEL PUMP SEAL MAY ALLOW FUEL LEAKAGE.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Yamaha told its dealers about the 2005 Yamaha YP400: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10022493 | COUPLER CORROSION MAKES ENGINE DIFFICULT TO START. *KB |
NHTSA manufacturer communications (public domain)
NHTSA investigations
MOTORSCOOTER STALLING
NHTSA Office of Defects Investigation