Yamaha FJ1100: MOT pass rate by registration year

Which FJ1100 years pass first time, and which fall short of the model's 78.9% average, from 1,822 DVSA tests.

1988

highest-passing year · 90.7%

1985

lowest-passing year · 77.4%

13.3pp

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 (90.7% of 54 tests). Lowest: 1985 (77.4% of 765).

Registered	Tests	First-time pass	vs model (78.9%)
1984	618	79.9%	+1.0 pp
1985	765	77.4%	-1.5 pp
1986	182	82.4%	+3.5 pp
1987	54	79.6%	+0.7 pp
1988	54	90.7%	+11.8 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 · 2005–2023

Questions

Which FJ1100 years have the lowest MOT pass rate?: none: no registration year of the Yamaha FJ1100 falls more than two points under the model's 78.9% overall pass rate.
Which FJ1100 year has the highest MOT pass rate?: 1988, at 90.7% of 54 first tests (2005–2025). Years more than two points above the model average: 1986, 1988.
How much does the FJ1100 pass rate vary by year?: 13.3 percentage points between the highest (1988, 90.7%) and lowest (1985, 77.4%) 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 FJ1100 reliability, failures and mileage · ranked #3788 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6