Yamaha MW: MOT pass rate by registration year

Which MW years pass first time, and which fall short of the model's 83.9% average, from 2,638 DVSA tests.

2017

highest-passing year · 86.0%

2014

lowest-passing year · 82.4%

3.6pp

spread across 4 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: 2017 (86.0% of 93 tests). Lowest: 2014 (82.4% of 774).

Registered	Tests	First-time pass	vs model (83.9%)
2014	774	82.4%	-1.5 pp
2015	974	84.6%	+0.7 pp
2016	786	84.2%	+0.3 pp
2017	93	86.0%	+2.1 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 · 2017–2025

Questions

Which MW years have the lowest MOT pass rate?: none: no registration year of the Yamaha MW falls more than two points under the model's 83.9% overall pass rate.
Which MW year has the highest MOT pass rate?: 2017, at 86.0% of 93 first tests (2005–2025).
How much does the MW pass rate vary by year?: 3.6 percentage points between the highest (2017, 86.0%) and lowest (2014, 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: Yamaha MW reliability, failures and mileage · ranked #2767 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6