Data as of: DVSA MOT results to 2025
Yamaha RD: MOT pass rate by registration year
Which RD years pass first time, and which fall short of the model's 86.0% average, from 2,258 DVSA tests.
Pass rate by registration year
Highest pass rate: 1988 (92.2% of 51 tests). Lowest: 1977 (76.9% of 78). Years more than two points below the model average: 1977, 1982, 1983, 1985, 1987.
| Registered | Tests | First-time pass | vs model (86.0%) |
|---|---|---|---|
| 1975 | 50 | 90.0% | +4.0 pp |
| 1976 | 66 | 89.4% | +3.4 pp |
| 1977 | 78 | 76.9% | -9.1 pp |
| 1978 | 139 | 84.2% | -1.8 pp |
| 1979 | 164 | 88.4% | +2.4 pp |
| 1980 | 298 | 89.3% | +3.3 pp |
| 1981 | 349 | 86.5% | +0.5 pp |
| 1982 | 145 | 83.4% | -2.6 pp |
| 1983 | 153 | 83.0% | -3.0 pp |
| 1984 | 162 | 88.9% | +2.9 pp |
| 1985 | 122 | 79.5% | -6.5 pp |
| 1986 | 124 | 87.9% | +1.9 pp |
| 1987 | 72 | 77.8% | -8.2 pp |
| 1988 | 51 | 92.2% | +6.2 pp |
| 1989 | 80 | 85.0% | -1.0 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 RD years have the lowest MOT pass rate?
- 1977, 1982, 1983, 1985, 1987 registered examples pass first time less often than the Yamaha RD overall (86.0%); the 1977 cohort is lowest at 76.9% from 78 tests.
- Which RD year has the highest MOT pass rate?
- 1988, at 92.2% of 51 first tests (2005–2025). Years more than two points above the model average: 1975, 1976, 1979, 1980, 1984, 1988.
- How much does the RD pass rate vary by year?
- 15.3 percentage points between the highest (1988, 92.2%) and lowest (1977, 76.9%) 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 RD reliability, failures and mileage · ranked #2197 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6