Yamaha WR400
Real ownership data from 331 UK WR400 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common WR400 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Brakes | fail | 19% |
| Electrical | major | 15.1% |
| Other | major | 14% |
| Chain and sprockets | major | 6.9% |
| Wheels | major | 6.6% |
| Exhaust and emissions | fail | 6.6% |
| Steering and head bearings | fail | 5.1% |
| Tyres | dangerous | 4.6% |
Advisories (wear noted but not failed) are excluded above; the most common is suspension.
WR400 mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| YearYear | MedianMedian mileage | Mi/yrMiles/year | MOT passFirst-time pass | |
|---|---|---|---|---|
| 2003 | 9 | 1,626 mi | 22 | 83.67% |
| 2002 | 22 | 2,706 mi | 281 | 78.81% |
| 2001 | 48 | 2,284 mi | 270 | 74.48% |
| 2000 | 116 | 2,247 mi | 274 | 78.02% |
| 1999 | 93 | 1,682 mi | 191 | 75.05% |
| 1998 | 33 | 1,756 mi | 102 | 81.3% |
WR400 questions, answered with data
What are the most common problems with the Yamaha WR400?
Across 331 UK examples, the most frequently recorded MOT faults are brakes (19% of all recorded faults), electrical (15.1% of all recorded faults), other (14% of all recorded faults).
What is average mileage for a Yamaha WR400?
The median Yamaha WR400 in the UK has covered 1,963 miles, and typically rides about 235 miles a year. Half of all examples fall between 472 and 5,036 miles.
Is the Yamaha WR400 reliable?
76.85% of Yamaha WR400 MOT tests are passed first time, with an average of 0.26 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 331 Yamaha WR400 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.