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YamahaModel report

Yamaha YP400 Problems by Model Year

NHTSA recorded 6 consumer complaints across the 1 model years of the Yamaha YP400 (2005–2005) that have at least 5 complaints. 2005 has the most, with 6. Across all years, the part named most often is engine cooling (3 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.

All YP400 model years

Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.

YearComplaintsMedian miRecallsTSBsScore (50 = typical)Trend
200567,05021—Not enough data

Parts named most often, all years

Counts add up complaint mentions across the listed years. A complaint can name several parts.

Example complaints

One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.

2005: “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.”

NHTSA complaint #10224148, filed 2008-04, 320 miles

Other Yamaha models

Yamaha Road Star
310 complaints
Yamaha Yamaha
173 complaints
Yamaha YZFR1
156 complaints
Yamaha FJR1300
122 complaints
Yamaha Road Star Warrior
117 complaints
Yamaha Bolt
82 complaints
Yamaha Road Star Silverado
74 complaints
Yamaha XV1700
56 complaints

All Yamaha models →

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology