Data as of: DVSA MOT results to 2025
Kawasaki Z400J: MOT pass rate by registration year
Which Z400J years pass first time, and which fall short of the model's 76.0% average, from 533 DVSA tests.
Pass rate by registration year
Highest pass rate: 1980 (76.4% of 161 tests). Lowest: 1981 (72.1% of 104). Years more than two points below the model average: 1981.
| Registered | Tests | First-time pass | vs model (76.0%) |
|---|---|---|---|
| 1979 | 50 | 76.0% | +0.0 pp |
| 1980 | 161 | 76.4% | +0.4 pp |
| 1981 | 104 | 72.1% | -3.9 pp |
| 1982 | 123 | 76.4% | +0.4 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 Z400J years have the lowest MOT pass rate?
- 1981 registered examples pass first time less often than the Kawasaki Z400J overall (76.0%); the 1981 cohort is lowest at 72.1% from 104 tests.
- Which Z400J year has the highest MOT pass rate?
- 1980, at 76.4% of 161 first tests (2005–2025).
- How much does the Z400J pass rate vary by year?
- 4.3 percentage points between the highest (1980, 76.4%) and lowest (1981, 72.1%) 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 Z400J reliability, failures and mileage · ranked #4189 of 5428 models· other Kawasaki models: ZX-6R, ZX-9R, ZZR600, ER5, ZZ-R1100, ZX