Yamaha SZR660: MOT pass rate by registration year

Which SZR660 years pass first time, and which fall short of the model's 78.0% average, from 1,354 DVSA tests.

1997

highest-passing year · 77.6%

1996

lowest-passing year · 76.6%

1.0pp

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: 1997 (77.6% of 702 tests). Lowest: 1996 (76.6% of 273).

Registered	Tests	First-time pass	vs model (78.0%)
1996	273	76.6%	-1.4 pp
1997	702	77.6%	-0.4 pp
1998	255	77.6%	-0.4 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 · 2005–2022

Questions

Which SZR660 years have the lowest MOT pass rate?: none: no registration year of the Yamaha SZR660 falls more than two points under the model's 78.0% overall pass rate.
Which SZR660 year has the highest MOT pass rate?: 1997, at 77.6% of 702 first tests (2005–2025).
How much does the SZR660 pass rate vary by year?: 1.0 percentage points between the highest (1997, 77.6%) and lowest (1996, 76.6%) 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 SZR660 reliability, failures and mileage · ranked #3913 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6