Kawasaki Ex 250 K9F vs Yamaha YP250

The Yamaha YP250 passes its MOT first time more often than the Kawasaki Ex 250 K9F: 82.5% vs 76.6%, a 5.9-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Kawasaki Ex 250 K9F	Yamaha YP250
First-time pass rate	76.6%	82.5%
Outright fail rate	14.7%	12.3%
Median miles at test	9,510	15,613
MOT tests analysed	2,342	12,433
Most common failure	brakes	brakes

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

KAWASAKI EX 250 K9F 76.6% pass · 2,342 tests YAMAHA YP250 82.5% pass · 12.4k tests

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.