Data as of: DVSA MOT results to 2025
Yamaha TR1: MOT pass rate by registration year
Which TR1 years pass first time, and which fall short of the model's 81.1% average, from 808 DVSA tests.
Pass rate by registration year
Highest pass rate: 1983 (86.4% of 88 tests). Lowest: 1985 (75.9% of 145). Years more than two points below the model average: 1982, 1985.
| Registered | Tests | First-time pass | vs model (81.1%) |
|---|---|---|---|
| 1981 | 166 | 80.7% | -0.4 pp |
| 1982 | 127 | 78.7% | -2.4 pp |
| 1983 | 88 | 86.4% | +5.3 pp |
| 1984 | 258 | 84.5% | +3.4 pp |
| 1985 | 145 | 75.9% | -5.2 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 TR1 years have the lowest MOT pass rate?
- 1982, 1985 registered examples pass first time less often than the Yamaha TR1 overall (81.1%); the 1985 cohort is lowest at 75.9% from 145 tests.
- Which TR1 year has the highest MOT pass rate?
- 1983, at 86.4% of 88 first tests (2005–2025). Years more than two points above the model average: 1983, 1984.
- How much does the TR1 pass rate vary by year?
- 10.5 percentage points between the highest (1983, 86.4%) and lowest (1985, 75.9%) 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 TR1 reliability, failures and mileage · ranked #3358 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6