Data as of: DVSA MOT results to 2025
Yamaha XT 660 X: MOT pass rate by registration year
Which XT 660 X years pass first time, and which fall short of the model's 83.9% average, from 12,377 DVSA tests.
Pass rate by registration year
Highest pass rate: 2013 (92.2% of 206 tests). Lowest: 2004 (81.1% of 1,789). Years more than two points below the model average: 2004, 2005.
| Registered | Tests | First-time pass | vs model (83.9%) |
|---|---|---|---|
| 2004 | 1,789 | 81.1% | -2.8 pp |
| 2005 | 2,714 | 81.2% | -2.7 pp |
| 2006 | 1,273 | 82.6% | -1.3 pp |
| 2007 | 1,787 | 83.9% | +0.0 pp |
| 2008 | 1,375 | 85.9% | +2.0 pp |
| 2009 | 1,591 | 85.9% | +2.0 pp |
| 2010 | 686 | 85.6% | +1.7 pp |
| 2011 | 586 | 89.9% | +6.0 pp |
| 2012 | 317 | 90.2% | +6.3 pp |
| 2013 | 206 | 92.2% | +8.3 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 XT 660 X years have the lowest MOT pass rate?
- 2004, 2005 registered examples pass first time less often than the Yamaha XT 660 X overall (83.9%); the 2004 cohort is lowest at 81.1% from 1,789 tests.
- Which XT 660 X year has the highest MOT pass rate?
- 2013, at 92.2% of 206 first tests (2005–2025). Years more than two points above the model average: 2011, 2012, 2013.
- How much does the XT 660 X pass rate vary by year?
- 11.1 percentage points between the highest (2013, 92.2%) and lowest (2004, 81.1%) 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 XT 660 X reliability, failures and mileage · ranked #2767 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6