Yamaha As1 MOT Pass Rate
Overall pass rate across all manufacture years, based on 41 real MOT test results. Failure rate: 9.8%.
Data from official DVSA MOT testing records
Yamaha As1 MOT Reliability Overview
The Yamaha As1 is a rare vehicle in the UK, with 41 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 90.2% and a failure rate of 9.8%, which is well above the UK average of approximately 37%.
Based on this data, the Yamaha As1 earns a "Excellent" reliability rating. The average Yamaha As1 presents for MOT with approximately 23,303 miles on the clock.
The most common MOT failure for the Yamaha As1 is Motorcycle lighting and signalling, affecting 4.9% of all tests. 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. The second most common issue is Motorcycle lamps and reflectors at 2.4%. Motorcycle body and structure rounds out the top three at 2.4%. 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
* 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 Lighting And Signalling | 4.9% | 2 |
| 2 | Motorcycle Tyres And Wheels | 2.4% | 1 |
| 3 | Motorcycle Lamps And Reflectors | 2.4% | 1 |
| 4 | Motorcycle Body And Structure | 2.4% | 1 |
Failures per 10,000 Miles
avg. 23,303 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 lighting and signalling | 2.09 | 4.9% | 2 |
| Motorcycle tyres and wheels | 1.05 | 2.4% | 1 |
| Motorcycle lamps and reflectors | 1.05 | 2.4% | 1 |
| Motorcycle body and structure | 1.05 | 2.4% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Yamaha As1 has 23,303 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 As1 has a mileage-adjusted failure rate of 4.21% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Yamaha As1 MOT Data
The Yamaha As1 is a rare vehicle in the UK, with 41 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 90.2% and a failure rate of 9.8%, which is well above the UK average of approximately 37%.
For Yamaha As1 owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lighting and signalling and motorcycle lamps and reflectors 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 As1 is likely to perform.
Motorcycle lighting and signalling — 4.9% of failures
Motorcycle lighting and signalling issues account for 4.9% of MOT failures on the Yamaha As1. 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.
Motorcycle lamps and reflectors — 2.4% of failures
Motorcycle lamps and reflectors issues account for 2.4% of MOT failures on the Yamaha As1. 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 body and structure — 2.4% of failures
Motorcycle body and structure issues account for 2.4% of MOT failures on the Yamaha As1. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Frequently Asked Questions
What is the MOT pass rate for the Yamaha As1?
Based on 41 (based on limited data) MOT tests in our database, the Yamaha As1 has an overall pass rate of 90.2% (9.8% fail rate).
What are the most common MOT failures on a Yamaha As1?
The top 3 reasons a Yamaha As1 fails its MOT are: 1. Motorcycle lighting and signalling (4.9%), 2. Motorcycle lamps and reflectors (2.4%), 3. Motorcycle body and structure (2.4%). Check these areas before booking your MOT.
Is the Yamaha As1 reliable?
With a 9.8% MOT failure rate, the As1 is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Yamaha As1?
Based on failure data, focus on: Motorcycle lighting and signalling (4.9%); Motorcycle lamps and reflectors (2.4%); Motorcycle body and structure (2.4%). 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.