BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
79.7%
first-time pass rate
12.3%
failed outright
19,736
median miles at test
1,202
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The YZF's first-time pass rate has fallen 2.9 points since 2006, 79.1% to 76.2%.

59%79%99%2006: 79.1% pass (86 tests)2007: 74.3% pass (74 tests)2008: 83.1% pass (65 tests)2009: 81.5% pass (65 tests)2010: 78.6% pass (70 tests)2011: 80.6% pass (67 tests)2012: 80.6% pass (72 tests)2013: 81.2% pass (69 tests)2014: 74.2% pass (66 tests)2015: 79.6% pass (54 tests)2016: 77.4% pass (53 tests)2017: 84.3% pass (51 tests)2018: 65.9% pass (44 tests)2019: 79.5% pass (39 tests)2020: 75.5% pass (49 tests)2021: 80.6% pass (72 tests)2022: 82.5% pass (63 tests)2023: 92.7% pass (55 tests)2024: 84.8% pass (33 tests)2025: 76.2% pass (42 tests)20062025

Pass rate by mileage

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

A low-mileage YZF passes first time 80.4% of the time; by 40k that's 70.8%.

68%77%86%0k: 80.4% pass (219 tests)10k: 83.8% pass (216 tests)20k: 77.5% pass (244 tests)30k: 74.0% pass (96 tests)40k: 70.8% pass (48 tests)0k20k40k

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 YZF

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
88 24.6 1.2×
brakes
75 21 1.0×
steering and suspension
56 15.7 1.1×
tyres and wheels
33 9.2 1.1×
lamps and reflectors
25 7 0.9×
suspension
22 6.2 1.7×
reg plates and vin
17 4.8 1.9×
drive system
16 4.5 1.3×
tyres
13 3.6 1.1×
audible warning (Horn)
12 3.4 5.5×

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 YZF beats 2 of its 4 closest rivals (HONDA CBR600F, HONDA CBR900RR, YAMAHA YZF-R6).

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 YZF.

Pass rate by registration year

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

Best year to buy used: 1996 (86.2% pass). Weakest: 1994 (70.2%).

67%78%89%1993: 80.5% pass (169 tests)1994: 70.2% pass (191 tests)1995: 82.2% pass (185 tests)1996: 86.2% pass (65 tests)2001: 81.1% pass (53 tests)2003: 78.1% pass (73 tests)199319962003

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 YZF FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA YZF reliable?

The YAMAHA YZF is less reliable than average for its class: 79.7% of its 1,202 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3647 of 5426 models.

What does a YZF fail its MOT on most?

lighting and signalling — 25% of all defects recorded against failed YZF tests.

What is the best year of YZF to buy used?

By first-time pass rate, 1996-registered examples do best (86.2%) and 1994 worst (70.2%). Condition and history still trump the year.

How many miles will a YZF last?

The median YZF shows 19,736 miles at test, and examples around 40k miles still pass 70.8% of the time — mileage alone rarely kills one.