Yamaha Diversion MOT Pass Rate
Overall pass rate across all manufacture years, based on 3,850 real MOT test results. Failure rate: 22.4%.
Data from official DVSA MOT testing records
Yamaha Diversion MOT Reliability Overview
The Yamaha Diversion is a niche vehicle in the UK, with 3,850 MOT test results recorded in our database spanning 11 manufacture years. It has an overall MOT pass rate of 77.6% and a failure rate of 22.4%, which is well above the UK average of approximately 37%.
Based on this data, the Yamaha Diversion earns a "Excellent" reliability rating. The average Yamaha Diversion presents for MOT with approximately 32,599 miles on the clock. Manufacture year matters: 2009 models achieve the highest pass rate at 91.2%, while 1991 models have the lowest at 62.7%. This 28.5 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Yamaha Diversion is Motorcycle brakes, affecting 14.0% of all tests. 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. The second most common issue is Motorcycle steering and suspension at 9.5%. Motorcycle lighting and signalling rounds out the top three at 8.6%. 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 Diversion. The dashed red line marks when the manufacturer warranty typically expires (3 years).
Line chart showing MOT failure rate by vehicle age from 13 to 20 years, with warranty expiry marked at 3 years.
💡 What does the warranty cliff mean?
The Yamaha Diversion shows a relatively stable failure rate after warranty — the change of 0% is negligible. Peak failure occurs at age 15 (28.4% 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 Brakes | 15.9% | 613 |
| 2 | Motorcycle Steering And Suspension | 11.4% | 439 |
| 3 | Motorcycle Lighting And Signalling | 9.3% | 357 |
| 4 | Motorcycle Tyres And Wheels | 6.1% | 236 |
| 5 | Motorcycle Fuel And Exhaust | 3.5% | 136 |
| 6 | Motorcycle Drive System | 3.4% | 130 |
| 7 | Motorcycle Lamps And Reflectors | 3.2% | 125 |
| 8 | Motorcycle Suspension | 2.7% | 104 |
| 9 | Motorcycle Structure And Attachments | 2.2% | 86 |
| 10 | Motorcycle Tyres | 1.6% | 60 |
| 11 | Motorcycle Body And Structure | 1.1% | 43 |
| 12 | Motorcycle Steering | 0.7% | 27 |
| 13 | Motorcycle Driving Controls | 0.4% | 17 |
| 14 | Motorcycle Audible Warning (Horn) | 0.4% | 15 |
| 15 | Motorcycle Reg Plates And Vin | 0.4% | 14 |
Failures per 10,000 Miles
avg. 32,599 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 brakes | 4.88 | 15.9% | 613 |
| Motorcycle steering and suspension | 3.50 | 11.4% | 439 |
| Motorcycle lighting and signalling | 2.84 | 9.3% | 357 |
| Motorcycle tyres and wheels | 1.88 | 6.1% | 236 |
| Motorcycle fuel and exhaust | 1.08 | 3.5% | 136 |
| Motorcycle drive system | 1.04 | 3.4% | 130 |
| Motorcycle lamps and reflectors | 1.00 | 3.2% | 125 |
| Motorcycle suspension | 0.83 | 2.7% | 104 |
| Motorcycle structure and attachments | 0.69 | 2.2% | 86 |
| Motorcycle tyres | 0.48 | 1.6% | 60 |
| Motorcycle body and structure | 0.34 | 1.1% | 43 |
| Motorcycle steering | 0.22 | 0.7% | 27 |
| Motorcycle driving controls | 0.14 | 0.4% | 17 |
| Motorcycle audible warning (Horn) | 0.12 | 0.4% | 15 |
| Motorcycle reg plates and vin | 0.11 | 0.4% | 14 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Yamaha Diversion has 32,599 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 Diversion has a mileage-adjusted failure rate of 6.87% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Yamaha Diversion MOT Data
The Yamaha Diversion is a niche vehicle in the UK, with 3,850 MOT test results recorded in our database spanning 11 manufacture years. It has an overall MOT pass rate of 77.6% and a failure rate of 22.4%, which is well above the UK average of approximately 37%.
For Yamaha Diversion owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle brakes and motorcycle steering and suspension 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 Diversion is likely to perform.
Motorcycle brakes — 14.0% of failures
Motorcycle brakes issues account for 14.0% of MOT failures on the Yamaha Diversion. 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).
Motorcycle steering and suspension — 9.5% of failures
Motorcycle steering and suspension issues account for 9.5% of MOT failures on the Yamaha Diversion. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Motorcycle lighting and signalling — 8.6% of failures
Motorcycle lighting and signalling issues account for 8.6% of MOT failures on the Yamaha Diversion. Motorcycle lighting and signalling issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Frequently Asked Questions
What is the MOT pass rate for the Yamaha Diversion?
Based on 3,850 MOT tests in our database, the Yamaha Diversion has an overall pass rate of 77.6% (22.4% fail rate).
What are the most common MOT failures on a Yamaha Diversion?
The top 3 reasons a Yamaha Diversion fails its MOT are: 1. Motorcycle brakes (14.0%), 2. Motorcycle steering and suspension (9.5%), 3. Motorcycle lighting and signalling (8.6%). Check these areas before booking your MOT.
Is the Yamaha Diversion reliable?
With a 22.4% MOT failure rate, the Diversion is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Yamaha Diversion?
Based on failure data, focus on: Motorcycle brakes (14.0%); Motorcycle steering and suspension (9.5%); Motorcycle lighting and signalling (8.6%). 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.