Kawasaki ZX636 B1H: MOT pass rate by registration year

Which ZX636 B1H years pass first time, and which fall short of the model's 83.8% average, from 1,367 DVSA tests.

2003

highest-passing year · 84.9%

2004

lowest-passing year · 82.4%

2.5pp

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: 2003 (84.9% of 377 tests). Lowest: 2004 (82.4% of 336).

Registered	Tests	First-time pass	vs model (83.8%)
2003	377	84.9%	+1.1 pp
2004	336	82.4%	-1.4 pp
2005	645	83.6%	-0.2 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 · 2006–2025

Questions

Which ZX636 B1H years have the lowest MOT pass rate?: none: no registration year of the Kawasaki ZX636 B1H falls more than two points under the model's 83.8% overall pass rate.
Which ZX636 B1H year has the highest MOT pass rate?: 2003, at 84.9% of 377 first tests (2005–2025).
How much does the ZX636 B1H pass rate vary by year?: 2.5 percentage points between the highest (2003, 84.9%) and lowest (2004, 82.4%) 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: Kawasaki ZX636 B1H reliability, failures and mileage · ranked #2791 of 5428 models· other Kawasaki models: ZX-6R, ZX-9R, ZZR600, ER5, ZZ-R1100, ZX