BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

YAMAHA XJ

600cc Petrol Class 2
83.1%
first-time pass rate
9.9%
failed outright
17,554
median miles at test
6,670
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The XJ's first-time pass rate has risen 7.8 points since 2005, 78.7% to 86.5%.

63%79%95%2005: 78.7% pass (47 tests)2006: 75.7% pass (230 tests)2007: 73.3% pass (195 tests)2008: 76.1% pass (180 tests)2009: 72.8% pass (162 tests)2010: 71.4% pass (161 tests)2011: 74.0% pass (169 tests)2012: 71.0% pass (162 tests)2013: 78.1% pass (192 tests)2014: 68.3% pass (202 tests)2015: 75.8% pass (178 tests)2016: 77.0% pass (200 tests)2017: 88.6% pass (633 tests)2018: 88.3% pass (503 tests)2019: 85.9% pass (518 tests)2020: 89.5% pass (475 tests)2021: 88.5% pass (581 tests)2022: 85.2% pass (561 tests)2023: 86.4% pass (523 tests)2024: 85.2% pass (391 tests)2025: 86.5% pass (407 tests)20052025

Pass rate by mileage

how the XJ's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage XJ passes first time 90.3% of the time; by 50k that's 77.3%.

71%82%93%0k: 90.3% pass (2,019 tests)10k: 85.6% pass (1,669 tests)20k: 79.3% pass (1,158 tests)30k: 74.4% pass (849 tests)40k: 78.3% pass (406 tests)50k: 77.3% pass (286 tests)0k30k50k

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

failure defects by component group · advisories excluded
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

same type, similar capacity, high test volume

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

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2015 (89.7% pass). Weakest: 1994 (67.6%).

63%79%94%1981: 78.3% pass (69 tests)1982: 79.9% pass (139 tests)1985: 80.0% pass (65 tests)1989: 68.9% pass (106 tests)1990: 67.8% pass (177 tests)1991: 75.3% pass (271 tests)1992: 72.4% pass (228 tests)1993: 71.0% pass (183 tests)1994: 67.6% pass (142 tests)1995: 76.4% pass (313 tests)1996: 77.5% pass (355 tests)1997: 75.6% pass (242 tests)1998: 75.9% pass (54 tests)2010: 86.3% pass (233 tests)2011: 81.9% pass (94 tests)2012: 84.0% pass (100 tests)2013: 87.1% pass (890 tests)2014: 89.1% pass (2,293 tests)2015: 89.7% pass (349 tests)2016: 89.6% pass (106 tests)198119962016

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

answers computed from the data above · terms in the glossary

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.