Yamaha YS125

Real ownership data from 2,637 UK YS125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.

UK examples

2,637

Median mileage

10,124 mi

Miles per year

1,650

MOT first-time pass

75.25%

Most common YS125 problems

Ranked by how often each fault appears in this model's MOT history.

Fault	Severity	Share of faults
Exhaust and emissions	dangerous	15.9%
Frame and structure	dangerous	6.8%
Steering and head bearings	dangerous	5.3%
Brakes	major	3%
Other	dangerous	2.3%
Tyres	dangerous	2.3%
Suspension	dangerous	2.3%
Brake discs and pads	dangerous	1.5%

Advisories (wear noted but not failed) are excluded above; the most common is fluid leaks.

YS125 mileage and reliability by year

Use this to judge whether a specific bike is high or low mileage for its age.

YearYear	ExamplesExamples	MedianMedian mileage	Mi/yrMiles/year	MOT passFirst-time pass
2021	84	8,380 mi	1,859	75.3%
2020	414	8,759 mi	1,549	73.95%
2019	692	10,374 mi	1,780	74.9%
2018	834	10,073 mi	1,610	75.37%
2017	604	11,882 mi	1,638	75.92%

YS125 questions, answered with data

What are the most common problems with the Yamaha YS125?

Across 2,637 UK examples, the most frequently recorded MOT faults are exhaust and emissions (15.9% of all recorded faults), frame and structure (6.8% of all recorded faults), steering and head bearings (5.3% of all recorded faults).

What is average mileage for a Yamaha YS125?

The median Yamaha YS125 in the UK has covered 10,124 miles, and typically rides about 1,650 miles a year. Half of all examples fall between 5,523 and 16,951 miles.

Is the Yamaha YS125 reliable?

75.25% of Yamaha YS125 MOT tests are passed first time, with an average of 0.01 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.

Based on DVSA MOT test records for 2,637 Yamaha YS125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.