Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 2 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Fuel/propulsion System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
2 reports
4,000 miles · Jul 16, 2014
Fuel/propulsion System
IN HOT WEATHER, THE YAMAHA YP400 FAILS TO START, STALLS AT IDLE, AND INTERMITTENTLY CUTS FUEL AT HIGH SPEED. SYMPTOMS ARE NONEXISTENT UNTIL THE AIR TEMPERATURE EXCEEDS ABOUT 95 DEGREES F. SIMILAR PROBLEMS WITH THE FUEL PUMPS ARE FREQUENTLY DOCUMENTED WITH OWNERS OF MAJESTY YP400 MODELS AS WELL AS T-MAX XP500 AND ZUMA YW125, TH…
Read full complaint
IN HOT WEATHER, THE YAMAHA YP400 FAILS TO START, STALLS AT IDLE, AND INTERMITTENTLY CUTS FUEL AT HIGH SPEED. SYMPTOMS ARE NONEXISTENT UNTIL THE AIR TEMPERATURE EXCEEDS ABOUT 95 DEGREES F. SIMILAR PROBLEMS WITH THE FUEL PUMPS ARE FREQUENTLY DOCUMENTED WITH OWNERS OF MAJESTY YP400 MODELS AS WELL AS T-MAX XP500 AND ZUMA YW125, THE LAST OF WHICH WAS SUBJECT TO A RECALL OF ITS OWN. *TR
NHTSA ODI #10611142
480 miles · Jun 9, 2008
Electrical System
SCOOTER STALLS AND IS HARD TO START AGAIN. JUST PURCHASED THE SCOOTER LESS THAN 60 DAYS AGO AND IT IS UNRELIABLE AS WE HAVE BEEN STUCK TWICE IN ONE DAY. *TR
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 & remedy
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.
ON CERTAIN MOTORCYCLES, A LEAK AT THE FUEL PUMP SEAL MAY ALLOW FUEL LEAKAGE.
Consequence & remedy
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.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1
PE08018 · Motorscooter Stalling
Opened Mar 18, 2008 · Closed May 13, 2008
Status: closed (inferred from source dates) · Electrical System
ODI OPENED THIS PE BASED ON OWNER AND EWR FIELD REPORTS ALLEGING THE SUBJECT SCOOTERS WOULD STALL WHILE UNDERWAY.AFTER OPENING THIS INVESTIGATION, YAMAHA DECIDED TO CONDUCT A CORRECTIVE SAFETY RECALL (08V-180) IN LIEU OF RESPONDING AN ODI INFORMATION REQUEST.WITH THAT RECALL, THIS PE IS CLOSED.
2007 Yamaha YP400 Problems, Complaints & Recalls | Skip That Year
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