Data as of: DVSA MOT results to 2025
Yamaha WR400: MOT pass rate by registration year
Which WR400 years pass first time, and which fall short of the model's 76.1% average, from 1,763 DVSA tests.
Pass rate by registration year
Highest pass rate: 2002 (78.1% of 146 tests). Lowest: 1999 (74.0% of 477). Years more than two points below the model average: 1999.
| Registered | Tests | First-time pass | vs model (76.1%) |
|---|---|---|---|
| 1998 | 137 | 75.9% | -0.2 pp |
| 1999 | 477 | 74.0% | -2.1 pp |
| 2000 | 645 | 76.6% | +0.5 pp |
| 2001 | 283 | 75.3% | -0.8 pp |
| 2002 | 146 | 78.1% | +2.0 pp |
Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.
Pass rate over time
Questions
- Which WR400 years have the lowest MOT pass rate?
- 1999 registered examples pass first time less often than the Yamaha WR400 overall (76.1%); the 1999 cohort is lowest at 74.0% from 477 tests.
- Which WR400 year has the highest MOT pass rate?
- 2002, at 78.1% of 146 first tests (2005–2025).
- How much does the WR400 pass rate vary by year?
- 4.1 percentage points between the highest (2002, 78.1%) and lowest (1999, 74.0%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
Full report: Yamaha WR400 reliability, failures and mileage · ranked #4173 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6