Data as of: DVSA MOT results to 2025
Yamaha CG50: MOT pass rate by registration year
Which CG50 years pass first time, and which fall short of the model's 72.4% average, from 623 DVSA tests.
Pass rate by registration year
Highest pass rate: 1989 (75.8% of 91 tests). Lowest: 2004 (58.3% of 60). Years more than two points below the model average: 1991, 2004.
| Registered | Tests | First-time pass | vs model (72.4%) |
|---|---|---|---|
| 1989 | 91 | 75.8% | +3.4 pp |
| 1990 | 86 | 73.3% | +0.9 pp |
| 1991 | 55 | 67.3% | -5.1 pp |
| 2002 | 56 | 73.2% | +0.8 pp |
| 2004 | 60 | 58.3% | -14.1 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 CG50 years have the lowest MOT pass rate?
- 1991, 2004 registered examples pass first time less often than the Yamaha CG50 overall (72.4%); the 2004 cohort is lowest at 58.3% from 60 tests.
- Which CG50 year has the highest MOT pass rate?
- 1989, at 75.8% of 91 first tests (2005–2025).
- How much does the CG50 pass rate vary by year?
- 17.5 percentage points between the highest (1989, 75.8%) and lowest (2004, 58.3%) 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 CG50 reliability, failures and mileage · ranked #4548 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6