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

YAMAHA XS

653cc Petrol Class 2
79.4%
first-time pass rate
12.3%
failed outright
23,030
median miles at test
1,107
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2018

The XS's first-time pass rate has risen 1.8 points since 2006, 79.8% to 81.6%.

70%80%89%2006: 79.8% pass (94 tests)2007: 80.8% pass (73 tests)2008: 83.1% pass (65 tests)2009: 73.5% pass (68 tests)2010: 74.2% pass (66 tests)2011: 81.6% pass (76 tests)2012: 74.2% pass (93 tests)2013: 75.3% pass (97 tests)2014: 85.7% pass (105 tests)2015: 82.3% pass (96 tests)2016: 79.5% pass (73 tests)2017: 78.8% pass (66 tests)2018: 81.6% pass (38 tests)20062018

Pass rate by mileage

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

A low-mileage XS passes first time 79.6% of the time; by 50k that's 80.7%.

73%83%92%0k: 79.6% pass (221 tests)10k: 78.1% pass (224 tests)20k: 81.0% pass (237 tests)30k: 76.1% pass (180 tests)40k: 89.4% pass (66 tests)50k: 80.7% pass (57 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 XS

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
94 27.5 1.3×
brakes
81 23.7 1.1×
steering and suspension
71 20.8 1.5×
tyres and wheels
27 7.9 0.9×
fuel and exhaust
20 5.8 1.9×
reg plates and vin
15 4.4 2.2×
body and structure
12 3.5 1.9×
lamps and reflectors
8 2.3 0.3×
drive system
8 2.3 0.9×
driving controls
6 1.8 2.3×

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 XS beats 2 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 XS.

Pass rate by registration year

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

Best year to buy used: 1978 (87.4% pass). Weakest: 1979 (73.8%).

71%81%90%1977: 80.6% pass (93 tests)1978: 87.4% pass (135 tests)1979: 73.8% pass (149 tests)1980: 80.0% pass (155 tests)1981: 81.7% pass (213 tests)1982: 80.4% pass (102 tests)1984: 77.4% pass (53 tests)197719801984

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 XS FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA XS reliable?

The YAMAHA XS is less reliable than average for its class: 79.4% of its 1,107 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3704 of 5426 models.

What does a XS fail its MOT on most?

lighting and signalling — 27% of all defects recorded against failed XS tests.

What is the best year of XS to buy used?

By first-time pass rate, 1978-registered examples do best (87.4%) and 1979 worst (73.8%). Condition and history still trump the year.

How many miles will a XS last?

The median XS shows 23,030 miles at test, and examples around 50k miles still pass 80.7% of the time — mileage alone rarely kills one.