Yamaha WR 250 R: MOT pass rate by registration year

Which WR 250 R years pass first time, and which fall short of the model's 85.5% average, from 1,271 DVSA tests.

2008

highest-passing year · 86.1%

2010

lowest-passing year · 83.6%

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: 2008 (86.1% of 432 tests). Lowest: 2010 (83.6% of 195).

Registered	Tests	First-time pass	vs model (85.5%)
2008	432	86.1%	+0.6 pp
2009	572	86.0%	+0.5 pp
2010	195	83.6%	-1.9 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 · 2011–2025

Questions

Which WR 250 R years have the lowest MOT pass rate?: none: no registration year of the Yamaha WR 250 R falls more than two points under the model's 85.5% overall pass rate.
Which WR 250 R year has the highest MOT pass rate?: 2008, at 86.1% of 432 first tests (2005–2025).
How much does the WR 250 R pass rate vary by year?: 2.5 percentage points between the highest (2008, 86.1%) and lowest (2010, 83.6%) 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: Yamaha WR 250 R reliability, failures and mileage · ranked #2363 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6