Honda 600: MOT pass rate by registration year

Which 600 years pass first time, and which fall short of the model's 79.9% average, from 760 DVSA tests.

1997

highest-passing year · 86.4%

1992

lowest-passing year · 72.6%

13.8pp

spread across 5 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: 1997 (86.4% of 59 tests). Lowest: 1992 (72.6% of 62). Years more than two points below the model average: 1992, 1998.

Registered	Tests	First-time pass	vs model (79.9%)
1992	62	72.6%	-7.3 pp
1994	102	81.4%	+1.5 pp
1995	65	80.0%	+0.1 pp
1997	59	86.4%	+6.5 pp
1998	115	75.7%	-4.2 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 · 2006–2017

Questions

Which 600 years have the lowest MOT pass rate?: 1992, 1998 registered examples pass first time less often than the Honda 600 overall (79.9%); the 1992 cohort is lowest at 72.6% from 62 tests.
Which 600 year has the highest MOT pass rate?: 1997, at 86.4% of 59 first tests (2005–2025).
How much does the 600 pass rate vary by year?: 13.8 percentage points between the highest (1997, 86.4%) and lowest (1992, 72.6%) 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: Honda 600 reliability, failures and mileage · ranked #3603 of 5428 models· other Honda models: CBR600F, CBR900RR, CBR1100XX, CB500, C90, VFR800 Fi