Yamaha YS125
Real ownership data from 2,632 UK YS125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common YS125 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Tyres | dangerous | 3.9% |
| Brakes | major | 5.4% |
| Brake discs and pads | dangerous | 1.2% |
| Chain and sprockets | dangerous | 0.9% |
| Steering and head bearings | prs | 0.6% |
| Other | major | 0.5% |
| Wheels | dangerous | 0.5% |
| Controls and cables | major | 0.3% |
Advisories (wear noted but not failed) are excluded above; the most common is suspension.
YS125 mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| Year | Examples | Median mileage | Miles/year | First-time pass |
|---|---|---|---|---|
| 2021 | 84 | 8,669 mi | 1,857 | 74.69% |
| 2020 | 412 | 8,686 mi | 1,597 | 74.22% |
| 2019 | 692 | 10,280 mi | 1,774 | 75.17% |
| 2018 | 833 | 9,832 mi | 1,608 | 75.3% |
| 2017 | 604 | 11,447 mi | 1,638 | 76.35% |
YS125 questions, answered with data
What are the most common problems with the Yamaha YS125?
Across 2,632 UK examples, the most frequently recorded MOT faults are tyres (3.9% of all recorded faults), brakes (5.4% of all recorded faults), brake discs and pads (1.2% of all recorded faults).
What is average mileage for a Yamaha YS125?
The median Yamaha YS125 in the UK has covered 10,018 miles, and typically rides about 1,652 miles a year. Half of all examples fall between 5,392 and 16,554 miles.
Is the Yamaha YS125 reliable?
75.44% of Yamaha YS125 MOT tests are passed first time, with an average of 1.09 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 2,632 Yamaha YS125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.