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

YAMAHA XJ600

598cc Petrol Class 2
76.5%
first-time pass rate
16.0%
failed outright
24,197
median miles at test
60.6k
MOT tests, 2005–2025

Pass rate over time

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

The XJ600's first-time pass rate has risen 3.8 points since 2005, 77.1% to 80.9%.

72%77%83%2005: 77.1% pass (1,127 tests)2006: 78.0% pass (5,502 tests)2007: 75.5% pass (4,964 tests)2008: 75.5% pass (4,646 tests)2009: 73.6% pass (4,338 tests)2010: 74.0% pass (4,080 tests)2011: 74.3% pass (3,910 tests)2012: 74.0% pass (3,713 tests)2013: 74.5% pass (3,698 tests)2014: 76.1% pass (3,469 tests)2015: 77.9% pass (3,284 tests)2016: 77.2% pass (2,951 tests)2017: 78.1% pass (2,657 tests)2018: 78.6% pass (1,854 tests)2019: 79.6% pass (1,792 tests)2020: 78.8% pass (1,475 tests)2021: 79.2% pass (1,790 tests)2022: 81.3% pass (1,632 tests)2023: 79.6% pass (1,533 tests)2024: 80.6% pass (1,081 tests)2025: 80.9% pass (1,061 tests)20052025

Pass rate by mileage

how the XJ600's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage XJ600 passes first time 84.3% of the time; by 50k that's 68.3%.

65%76%88%0k: 84.3% pass (8,657 tests)10k: 80.7% pass (15,011 tests)20k: 75.8% pass (14,945 tests)30k: 73.3% pass (11,026 tests)40k: 69.7% pass (5,840 tests)50k: 68.3% pass (2,853 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 XJ600

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
6,026 27.6 1.7×
steering and suspension
4,788 22 1.9×
lighting and signalling
4,125 18.9 1.2×
tyres and wheels
2,119 9.7 1.5×
drive system
1,440 6.6 2.4×
fuel and exhaust
1,053 4.8 2.0×
lamps and reflectors
750 3.4 0.5×
suspension
640 2.9 1.1×
structure and attachments
451 2.1 0.8×
tyres
404 1.9 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 XJ600 beats 0 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 XJ600.

Pass rate by registration year

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

Best year to buy used: 2009 (86.2% pass). Weakest: 1985 (61.9%).

57%74%91%1984: 77.4% pass (53 tests)1985: 61.9% pass (126 tests)1986: 71.3% pass (188 tests)1989: 72.9% pass (915 tests)1990: 71.4% pass (1,550 tests)1991: 69.8% pass (2,144 tests)1992: 71.3% pass (3,479 tests)1993: 71.2% pass (2,700 tests)1994: 71.0% pass (2,256 tests)1995: 74.9% pass (2,679 tests)1996: 75.7% pass (3,972 tests)1997: 76.4% pass (8,614 tests)1998: 76.5% pass (10,249 tests)1999: 77.8% pass (7,693 tests)2000: 79.4% pass (4,301 tests)2001: 80.7% pass (2,772 tests)2002: 81.2% pass (1,869 tests)2003: 82.3% pass (1,144 tests)2009: 86.2% pass (1,115 tests)2010: 85.4% pass (1,824 tests)2011: 85.7% pass (412 tests)2012: 85.4% pass (261 tests)198419972012

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 XJ600 FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA XJ600 reliable?

The YAMAHA XJ600 is less reliable than average for its class: 76.5% of its 60,557 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4123 of 5426 models.

What does a XJ600 fail its MOT on most?

brakes — 28% of all defects recorded against failed XJ600 tests.

What is the best year of XJ600 to buy used?

By first-time pass rate, 2009-registered examples do best (86.2%) and 1985 worst (61.9%). Condition and history still trump the year.

How many miles will a XJ600 last?

The median XJ600 shows 24,197 miles at test, and examples around 50k miles still pass 68.3% of the time — mileage alone rarely kills one.