Data as of: DVSA MOT results to 2025
Kawasaki Z1: MOT pass rate by registration year
Which Z1 years pass first time, and which fall short of the model's 88.5% average, from 1,447 DVSA tests.
Pass rate by registration year
Highest pass rate: 1972 (94.7% of 152 tests). Lowest: 1976 (80.5% of 133). Years more than two points below the model average: 1976.
| Registered | Tests | First-time pass | vs model (88.5%) |
|---|---|---|---|
| 1971 | 63 | 92.1% | +3.6 pp |
| 1972 | 152 | 94.7% | +6.2 pp |
| 1973 | 369 | 89.4% | +0.9 pp |
| 1974 | 265 | 87.5% | -1.0 pp |
| 1975 | 294 | 88.1% | -0.4 pp |
| 1976 | 133 | 80.5% | -8.0 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 Z1 years have the lowest MOT pass rate?
- 1976 registered examples pass first time less often than the Kawasaki Z1 overall (88.5%); the 1976 cohort is lowest at 80.5% from 133 tests.
- Which Z1 year has the highest MOT pass rate?
- 1972, at 94.7% of 152 first tests (2005–2025). Years more than two points above the model average: 1971, 1972.
- How much does the Z1 pass rate vary by year?
- 14.2 percentage points between the highest (1972, 94.7%) and lowest (1976, 80.5%) 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: Kawasaki Z1 reliability, failures and mileage · ranked #1449 of 5428 models· other Kawasaki models: ZX-6R, ZX-9R, ZZR600, ER5, ZZ-R1100, ZX