2005 Yamaha YP400: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
6 owner complaints analyzed
2 distinct recall campaigns
7,050 mi median reported failure mileage
Scope: 2005 model year. Data snapshot: . 6 complaints include usable failure mileage.
Most common problems
Engine And Engine Cooling is the most frequently named component, appearing in 2 of 6 complaints (33.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Engine operation | 6 | 100.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine And Engine Cooling | 2 |
| Electrical System | 1 |
| Electrical System:Software | 1 |
| Engine | 1 |
| Engine And Engine Cooling:Engine | 1 |
Engine And Engine Cooling: 2; Electrical System: 1; Electrical System:Software: 1; Engine: 1; Engine And Engine Cooling:Engine: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 6 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 6; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (6). 0 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2007 | 1 |
| 2008 | 3 |
| 2010 | 1 |
| 2013 | 1 |
2007: 1; 2008: 3; 2010: 1; 2013: 1
Pattern summary
Engine And Engine Cooling leads the component reports. Engine operation appears in 6 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10201010 · 2007-08-28 (August 28, 2007)
2005 YAMAHA MAJESTY 400CC SCOOTER STALLING IN TRAFFIC. ENGINE WAS WARM, COMING TO A STOP. ENGINE STALLED AROUND 5-10MPH. THIS IS THE 5TH TIME SINCE NEW. CONDITION VERY SERIOUS, AS I WAS ALMOST RUN OVER BY TRAFFIC DUE TO SUDDEN LOSS OF POWER/DRIVE. THIS IS A LAWSUIT FOR SURE. ON A VERY SMALL YAMAHA SCOOTER FORUM, THERE ARE ALREADY 38 OTHER RIDERS WITH THIS EXACT SAME SCOOTER THAT HAS STALLED AT LEAST ONCE. HTTP://MAJESTYUSA.COM/FORUMS/VIEWTOPIC.PHP?T=486&POSTDAYS=0&POSTORDER=ASC&START=0. THIS IS A VERY SERIOUS COMPLAINT I'M FILING. I AL…
Owner-reported narrative. 12,100 miles reported. Look up ODI 10201010 at NHTSA ↗
Owner report 10223529 · 2008-04-07 (April 7, 2008)
VEHICLE STALLS WHEN ATTEMPTING TO ACCELERATE NORMALLY (TYPICALLY STALLS IN INTERSECTION). NOT FREQUENT. VEHICLE RESTARTS NORMALLY. OCCURS WHEN ENGINE IS FULLY WARMED UP. *TR
Owner-reported narrative. 3,000 miles reported. Look up ODI 10223529 at NHTSA ↗
Owner report 10224148 · 2008-04-10 (April 10, 2008)
I HAD A NEW 2005 MAJESTY (YAMAHA) SCOOTER. IT WOULD ON OCCASION STALL. I HAD IT TWICE STALL WHILE MERGING ONTO THE FREEWAY. THIS ALMOST RESULTED IN A CRASH, BUT I WAS ABLE TO GET TO THE SHOULDER AND RESTART THE ENGINE. THE DEALER REPLACED THE ECU AND I HAVE NOT ANY PROBLEMS SINCE. *TR
Owner-reported narrative. 320 miles reported. Look up ODI 10224148 at NHTSA ↗
Owner report 10226991 · 2008-05-08 (May 8, 2008)
ENGINE STALLS IN TRAFFIC. *TR
Owner-reported narrative. 14,450 miles reported. Look up ODI 10226991 at NHTSA ↗
Owner report 10327595 · 2010-04-26 (April 26, 2010)
ENGINE STALLING WHILE MOVING. *TR
Owner-reported narrative. 4,500 miles reported. Look up ODI 10327595 at NHTSA ↗
Owner report 10556583 · 2013-12-18 (December 18, 2013)
ONCE ENGINE WAS WARMED UP, VEHICLE STALLED AT STOPLIGHTS TWICE AND ONCE WHEN STARTING TO MOVE AFTER A STOP (WHEN IN AN INTERSECTION). OTHER TIMES WHEN STOPPED. IDLE SPEED DROPPED BELOW 1400, UNDER WHICH IT STALLS, AND IT WAS DIFFICULT TO REV THE ENGINE TO PREVENT STALLING SINCE THERE IS NO NEUTRAL GEAR, SO REVVING MORE THAN SLIGHTLY CAN MAKE THE VEHICLE MOVE. *TR
Owner-reported narrative. 9,600 miles reported. Look up ODI 10556583 at NHTSA ↗
Recall history
2 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
07V219000 · Fuel System, Gasoline:Delivery:Fuel Pump
Reported: 2007-05-24 (May 24, 2007)
ON CERTAIN MOTORCYCLES, A LEAK AT THE FUEL PUMP SEAL MAY ALLOW FUEL LEAKAGE.
Consequence: FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.
Remedy: DEALERS WILL REPLACE THE FUEL PUMP SEAL FREE OF CHARGE. THE RECALL BEGAN ON JUNE 18, 2007. OWNERS MAY CONTACT YAMAHA AT 1-800-962-7926.
NHTSA campaign record ↗08V180000 · Fuel System, Gasoline:Delivery:Fuel Pump
Reported: 2008-04-23 (April 23, 2008)
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.
Consequence: IF THE WATER REMAINS IN THE COUPLER FOR AN EXTENDED PERIOD OF TIME, THE TERMINALS CAN BECOME CORRODED, WHICH CAN PREVENT THE FUEL PUMP FROM OPERATING PROPERLY. IF THIS CORROSION AFFECTS FUEL PUMP OPERATION WHILE THE SCOOTER IS BEING RIDDEN, THERE COULD BE A CRASH RESULTING IN INJURY OR DEATH.
Remedy: DEALERS WILL INSTALL A SUB-HARNESS WHICH IS DESIGNED TO ALLOW ANY WATER BETWEEN THE WIRE HARNESS AND THE FUEL PUMP TO DRAIN OUT BEFORE IT REACHES THE FUEL PUMP. THE DEALER WILL ALSO INSPECT THE CONNECTORS. IF EITHER THE MAIN WIRE HARNESS CONNECTOR OR THE FUEL PUMP CONNECTORS IS ALREADY CORRODED, THE CORRESPONDING ASSEMBLY(IES) WILL ALSO BE REPLACED. THE RECALL BEGAN ON MAY 9, 2008. OWNERS MAY CONTACT YAMAHA AT 1-800-962-7926.
NHTSA campaign record ↗