Yamaha Yn MOT Pass Rate
Overall pass rate across all manufacture years, based on 2,005 real MOT test results. Failure rate: 23.7%.
Data from official DVSA MOT testing records
Yamaha Yn MOT Reliability Overview
The Yamaha Yn is a niche vehicle in the UK, with 2,005 MOT test results recorded in our database spanning 6 manufacture years. It has an overall MOT pass rate of 76.3% and a failure rate of 23.7%, which is well above the UK average of approximately 37%.
Based on this data, the Yamaha Yn earns a "Excellent" reliability rating. The average Yamaha Yn presents for MOT with approximately 7,072 miles on the clock. Manufacture year matters: 2018 models achieve the highest pass rate at 85.2%, while 2014 models have the lowest at 72.4%. This 12.8 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Yamaha Yn is Motorcycle lamps and reflectors, affecting 15.6% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Motorcycle tyres at 11.3%. Motorcycle brakes rounds out the top three at 10.8%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Best Year to Buy
📈 How Each Vintage Ages
📉 How Age Affects Reliability
MOT failure rate by vehicle age for the Yamaha Yn. The dashed red line marks when the manufacturer warranty typically expires (3 years).
Line chart showing MOT failure rate by vehicle age from 3 to 10 years, with warranty expiry marked at 3 years.
💡 What does the warranty cliff mean?
The Yamaha Yn actually sees a 23% decrease in failure rate after the warranty period. This is likely due to survivorship bias — unreliable cars are already off the road by this age. Peak failure occurs at age 10 (28.6% fail rate).
Note: pass rates may improve for very old vehicles due to survivorship bias — only well-maintained cars remain on the road.
Pass Rate by Manufacture Year
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Lamps And Reflectors | 15.6% | 313 |
| 2 | Motorcycle Tyres | 11.3% | 226 |
| 3 | Motorcycle Brakes | 10.8% | 216 |
| 4 | Motorcycle Suspension | 7.7% | 154 |
| 5 | Motorcycle Steering | 4.4% | 88 |
| 6 | Motorcycle Tyres And Wheels | 3.8% | 77 |
| 7 | Motorcycle Structure And Attachments | 3.4% | 68 |
| 8 | Motorcycle Lighting And Signalling | 2.8% | 57 |
| 9 | Motorcycle Steering And Suspension | 2.2% | 44 |
| 10 | Motorcycle Wheels | 0.8% | 16 |
| 11 | Motorcycle Fuel And Exhaust | 0.7% | 15 |
| 12 | Identification Of The Vehicle | 0.6% | 13 |
| 13 | Motorcycle Audible Warning (Horn) | 0.3% | 6 |
| 14 | Non-component Advisories | 0.2% | 5 |
| 15 | Motorcycle Body And Structure | 0.2% | 5 |
Failures per 10,000 Miles
avg. 7,072 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle lamps and reflectors | 22.07 | 15.6% | 313 |
| Motorcycle tyres | 15.94 | 11.3% | 226 |
| Motorcycle brakes | 15.23 | 10.8% | 216 |
| Motorcycle suspension | 10.86 | 7.7% | 154 |
| Motorcycle steering | 6.21 | 4.4% | 88 |
| Motorcycle tyres and wheels | 5.43 | 3.8% | 77 |
| Motorcycle structure and attachments | 4.80 | 3.4% | 68 |
| Motorcycle lighting and signalling | 4.02 | 2.8% | 57 |
| Motorcycle steering and suspension | 3.10 | 2.2% | 44 |
| Motorcycle wheels | 1.13 | 0.8% | 16 |
| Motorcycle fuel and exhaust | 1.06 | 0.7% | 15 |
| Identification of the vehicle | 0.92 | 0.6% | 13 |
| Motorcycle audible warning (Horn) | 0.42 | 0.3% | 6 |
| Non-component advisories | 0.35 | 0.2% | 5 |
| Motorcycle body and structure | 0.35 | 0.2% | 5 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Yamaha Yn has 7,072 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Yamaha Yn has a mileage-adjusted failure rate of 33.51% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Yamaha Yn MOT Data
The Yamaha Yn is a niche vehicle in the UK, with 2,005 MOT test results recorded in our database spanning 6 manufacture years. It has an overall MOT pass rate of 76.3% and a failure rate of 23.7%, which is well above the UK average of approximately 37%.
For Yamaha Yn owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lamps and reflectors and motorcycle tyres for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Yn is likely to perform.
Motorcycle lamps and reflectors — 15.6% of failures
Motorcycle lamps and reflectors issues account for 15.6% of MOT failures on the Yamaha Yn. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Motorcycle tyres — 11.3% of failures
Motorcycle tyres issues account for 11.3% of MOT failures on the Yamaha Yn. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Motorcycle brakes — 10.8% of failures
Motorcycle brakes issues account for 10.8% of MOT failures on the Yamaha Yn. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Frequently Asked Questions
What is the MOT pass rate for the Yamaha Yn?
Based on 2,005 MOT tests in our database, the Yamaha Yn has an overall pass rate of 76.3% (23.7% fail rate).
What are the most common MOT failures on a Yamaha Yn?
The top 3 reasons a Yamaha Yn fails its MOT are: 1. Motorcycle lamps and reflectors (15.6%), 2. Motorcycle tyres (11.3%), 3. Motorcycle brakes (10.8%). Check these areas before booking your MOT.
Is the Yamaha Yn reliable?
With a 23.7% MOT failure rate, the Yn is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Yamaha Yn?
Based on failure data, focus on: Motorcycle lamps and reflectors (15.6%); Motorcycle tyres (11.3%); Motorcycle brakes (10.8%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.