Suzuki GSX-R400H: MOT pass rate by registration year

Which GSX-R400H years pass first time, and which fall short of the model's 67.3% average, from 859 DVSA tests.

1992

highest-passing year · 75.3%

1988

lowest-passing year · 63.4%

11.9pp

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: 1992 (75.3% of 73 tests). Lowest: 1988 (63.4% of 123). Years more than two points below the model average: 1988, 1991.

Registered	Tests	First-time pass	vs model (67.3%)
1988	123	63.4%	-3.9 pp
1989	76	72.4%	+5.1 pp
1990	177	68.9%	+1.6 pp
1991	157	65.0%	-2.3 pp
1992	73	75.3%	+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

first-time pass rate by test year · 2005–2017

Questions

Which GSX-R400H years have the lowest MOT pass rate?: 1988, 1991 registered examples pass first time less often than the Suzuki GSX-R400H overall (67.3%); the 1988 cohort is lowest at 63.4% from 123 tests.
Which GSX-R400H year has the highest MOT pass rate?: 1992, at 75.3% of 73 first tests (2005–2025). Years more than two points above the model average: 1989, 1992.
How much does the GSX-R400H pass rate vary by year?: 11.9 percentage points between the highest (1992, 75.3%) and lowest (1988, 63.4%) 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: Suzuki GSX-R400H reliability, failures and mileage · ranked #4895 of 5428 models· other Suzuki models: GSXR600, GSF600, GSXR750, GSF1200, GSXR1000, SV650S