Pass rate over time
The XJ's first-time pass rate has risen 7.8 points since 2005, 78.7% to 86.5%.
Pass rate by mileage
A low-mileage XJ passes first time 90.3% of the time; by 50k that's 77.3%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a XJ
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| brakes |
|
288 | 22.3 | 0.8× |
| steering and suspension |
|
238 | 18.4 | 0.9× |
| lighting and signalling |
|
216 | 16.7 | 0.6× |
| lamps and reflectors |
|
150 | 11.6 | 1.0× |
| tyres and wheels |
|
119 | 9.2 | 0.8× |
| tyres |
|
73 | 5.6 | 1.4× |
| drive system |
|
65 | 5 | 1.0× |
| fuel and exhaust |
|
50 | 3.9 | 0.9× |
| suspension |
|
48 | 3.7 | 0.8× |
| structure and attachments |
|
47 | 3.6 | 0.8× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the XJ beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the XJ.
Pass rate by registration year
Best year to buy used: 2015 (89.7% pass). Weakest: 1994 (67.6%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
YAMAHA XJ FAQ
Is the YAMAHA XJ reliable?
The YAMAHA XJ is about average for its class: 83.1% of its 6,670 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2940 of 5426 models.
What does a XJ fail its MOT on most?
brakes — 22% of all defects recorded against failed XJ tests.
What is the best year of XJ to buy used?
By first-time pass rate, 2015-registered examples do best (89.7%) and 1994 worst (67.6%). Condition and history still trump the year.
How many miles will a XJ last?
The median XJ shows 17,554 miles at test, and examples around 50k miles still pass 77.3% of the time — mileage alone rarely kills one.