Data as of: DVSA MOT results to 2025
Yamaha DT175: MOT pass rate by registration year
Which DT175 years pass first time, and which fall short of the model's 82.9% average, from 2,702 DVSA tests.
Pass rate by registration year
Highest pass rate: 1975 (89.2% of 83 tests). Lowest: 1984 (74.4% of 86). Years more than two points below the model average: 1971, 1979, 1982, 1984.
| Registered | Tests | First-time pass | vs model (82.9%) |
|---|---|---|---|
| 1971 | 83 | 78.3% | -4.6 pp |
| 1975 | 83 | 89.2% | +6.3 pp |
| 1976 | 56 | 82.1% | -0.8 pp |
| 1977 | 100 | 82.0% | -0.9 pp |
| 1978 | 334 | 85.3% | +2.4 pp |
| 1979 | 375 | 80.8% | -2.1 pp |
| 1980 | 574 | 82.6% | -0.3 pp |
| 1981 | 579 | 84.6% | +1.7 pp |
| 1982 | 193 | 79.8% | -3.1 pp |
| 1983 | 59 | 84.7% | +1.8 pp |
| 1984 | 86 | 74.4% | -8.5 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 DT175 years have the lowest MOT pass rate?
- 1971, 1979, 1982, 1984 registered examples pass first time less often than the Yamaha DT175 overall (82.9%); the 1984 cohort is lowest at 74.4% from 86 tests.
- Which DT175 year has the highest MOT pass rate?
- 1975, at 89.2% of 83 first tests (2005–2025). Years more than two points above the model average: 1975, 1978.
- How much does the DT175 pass rate vary by year?
- 14.8 percentage points between the highest (1975, 89.2%) and lowest (1984, 74.4%) 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 DT175 reliability, failures and mileage · ranked #2985 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6