Yamaha SRX: MOT pass rate by registration year

Which SRX years pass first time, and which fall short of the model's 83.8% average, from 550 DVSA tests.

1988

highest-passing year · 88.7%

1986

lowest-passing year · 81.8%

6.9pp

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: 1988 (88.7% of 53 tests). Lowest: 1986 (81.8% of 66).

Registered	Tests	First-time pass	vs model (83.8%)
1986	66	81.8%	-2.0 pp
1987	59	84.7%	+0.9 pp
1988	53	88.7%	+4.9 pp
1990	106	83.0%	-0.8 pp
1991	81	86.4%	+2.6 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 · 2006–2016

Questions

Which SRX years have the lowest MOT pass rate?: none: no registration year of the Yamaha SRX falls more than two points under the model's 83.8% overall pass rate.
Which SRX year has the highest MOT pass rate?: 1988, at 88.7% of 53 first tests (2005–2025). Years more than two points above the model average: 1988, 1991.
How much does the SRX pass rate vary by year?: 6.9 percentage points between the highest (1988, 88.7%) and lowest (1986, 81.8%) 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 SRX reliability, failures and mileage · ranked #2791 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6