Yamaha XJ750: MOT pass rate by registration year

Which XJ750 years pass first time, and which fall short of the model's 76.6% average, from 1,442 DVSA tests.

1984

highest-passing year · 79.2%

1981

lowest-passing year · 71.9%

7.3pp

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: 1984 (79.2% of 144 tests). Lowest: 1981 (71.9% of 224). Years more than two points below the model average: 1981, 1983.

Registered	Tests	First-time pass	vs model (76.6%)
1981	224	71.9%	-4.7 pp
1982	591	77.2%	+0.6 pp
1983	180	74.4%	-2.2 pp
1984	144	79.2%	+2.6 pp
1985	157	77.1%	+0.5 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 XJ750 years have the lowest MOT pass rate?: 1981, 1983 registered examples pass first time less often than the Yamaha XJ750 overall (76.6%); the 1981 cohort is lowest at 71.9% from 224 tests.
Which XJ750 year has the highest MOT pass rate?: 1984, at 79.2% of 144 first tests (2005–2025).
How much does the XJ750 pass rate vary by year?: 7.3 percentage points between the highest (1984, 79.2%) and lowest (1981, 71.9%) 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 XJ750 reliability, failures and mileage · ranked #4109 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6