BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Jawa 350/640: MOT pass rate by registration year

Which 350/640 years pass first time, and which fall short of the model's 88.0% average, from 518 DVSA tests.

1995
highest-passing year · 90.3%
1998
lowest-passing year · 70.0%
20.3pp
spread across 3 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 1995 (90.3% of 62 tests). Lowest: 1998 (70.0% of 50). Years more than two points below the model average: 1998.

66%80%94%1994: 87.0% pass (77 tests)1995: 90.3% pass (62 tests)1998: 70.0% pass (50 tests)199419951998
RegisteredTestsFirst-time passvs model (88.0%)
1994 77 87.0% -1.0 pp
1995 62 90.3% +2.3 pp
1998 50 70.0% -18.0 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

first-time pass rate by test year · 2013–2024
64%82%100%2013: 71.0% pass (31 tests)2021: 97.3% pass (37 tests)2022: 86.8% pass (38 tests)2023: 91.4% pass (35 tests)2024: 86.7% pass (30 tests)20132024

Questions

Which 350/640 years have the lowest MOT pass rate?
1998 registered examples pass first time less often than the Jawa 350/640 overall (88.0%); the 1998 cohort is lowest at 70.0% from 50 tests.
Which 350/640 year has the highest MOT pass rate?
1995, at 90.3% of 62 first tests (2005–2025).
How much does the 350/640 pass rate vary by year?
20.3 percentage points between the highest (1995, 90.3%) and lowest (1998, 70.0%) 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: Jawa 350/640 reliability, failures and mileage · ranked #1604 of 5428 models· other Jawa models: 350/639, 210, 350, 350 D/L, 350 S/C, 350 Classic