Yamaha YP1 25R: MOT pass rate by registration year

Which YP1 25R years pass first time, and which fall short of the model's 69.1% average, from 738 DVSA tests.

2001

highest-passing year · 73.6%

2000

lowest-passing year · 63.1%

10.5pp

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: 2001 (73.6% of 87 tests). Lowest: 2000 (63.1% of 130). Years more than two points below the model average: 1999, 2000, 2002.

Registered	Tests	First-time pass	vs model (69.1%)
1999	112	63.4%	-5.7 pp
2000	130	63.1%	-6.0 pp
2001	87	73.6%	+4.5 pp
2002	73	64.4%	-4.7 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 YP1 25R years have the lowest MOT pass rate?: 1999, 2000, 2002 registered examples pass first time less often than the Yamaha YP1 25R overall (69.1%); the 2000 cohort is lowest at 63.1% from 130 tests.
Which YP1 25R year has the highest MOT pass rate?: 2001, at 73.6% of 87 first tests (2005–2025).
How much does the YP1 25R pass rate vary by year?: 10.5 percentage points between the highest (2001, 73.6%) and lowest (2000, 63.1%) 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 YP1 25R reliability, failures and mileage · ranked #4796 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6