YAMAHA WR400F

400cc Petrol Class 2

#3686 of 5426 overall #248 of 409 YAMAHAs #2344 of 2787 other bikes

79.5%

first-time pass rate

14.5%

failed outright

3,078

median miles at test

469

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2014

The WR400F's first-time pass rate has held steady since 2006 (76.9% → 77.4%).

What fails on a WR400F

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	119	43
steering and suspension	55	19.9
brakes	34	12.3
reg plates and vin	24	8.7
tyres and wheels	24	8.7
drive system	8	2.9
fuel and exhaust	6	2.2
lamps and reflectors	3	1.1
Items Not Tested	2	0.7
driving controls	2	0.7

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the WR400F beats 2 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI AN400).

KAWASAKI ER5 77.4% pass · 53.1k tests SUZUKI GS500 76.4% pass · 44.9k tests SUZUKI AN400 86.2% pass · 27.1k tests SUZUKI DR-Z400S 80.4% pass · 26.8k tests

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 WR400F.

Pass rate by registration year

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

Best year to buy used: 1999 (83.3% pass). Weakest: 2001 (76.1%).

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.