DVSA Statistics
1991 Yamaha Unclassified
MOT Pass Rate & Pre-MOT Checklist
Used 1991 Yamaha Unclassifieds usually pass their MOT, but around 1 in 9 still fail, most often for a shock absorber not functioning or leaking severely, exhaust system leaking or insecure and the aim of a headlamp is not within limits laid down in the requirements. Based on 204 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 204 DVSA anonymised MOT tests · About this data
Pass Rate
88.7%
Higher than average
Top Failure Reasons
Common MOT failures for this model
Quick DIY Fix
Headlight bulbs are a common MOT fail. Easy DIY replacement.
Based on DVSA statistics from 204 recorded tests.
Pre-MOT Checklist for 1991 Yamaha Unclassified
Based on common failure points for this model, check these items before your MOT:
- 1
Push down on each corner and release - car should bounce once only
Suspension – Common fail on this model
- 2
Check exhaust for leaks, holes, or excessive corrosion - listen for blowing
Exhaust – Common fail on this model
- 3
Test all headlights work and aim is correct - check for condensation inside
Lighting – Common fail on this model
- 4
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
How Does This Compare to Other Years?
Previous Year
1990 Yamaha Unclassified
Based on 223 UK MOT tests
Next Year
1992 Yamaha Unclassified
Based on 218 UK MOT tests
The 1991 model has a lower pass rate than 1990, but performs better than 1992.
Why Trust This Data?
Official UK Government Source
This data comes from the UK's Driver and Vehicle Standards Agency (DVSA), the official body responsible for MOT testing standards. The anonymised MOT test data is published via data.gov.uk.
Understanding the Statistics
This page is based on 204 MOT tests from the 2023 DVSA dataset. Your 1991 Yamaha Unclassified was 32 years old when this data was collected and is now 35 years old.
Sample Size
High confidence - 204 tests (statistically reliable)
Limitations
Statistics reflect average outcomes and don't account for maintenance history, mileage, or regional variations. Individual results will vary based on how well a vehicle has been maintained.
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact Yamaha Unclassified.
Frequently Asked Questions
Is a 1991 Yamaha Unclassified likely to fail its MOT?
Based on DVSA statistics, the 1991 Yamaha Unclassified has a 88.7% MOT pass rate. This is above average, indicating good reliability for a vehicle of this age.
What are the most common MOT failures on a 1991 Yamaha Unclassified?
The most common MOT failure reasons for a 1991 Yamaha Unclassified are: a shock absorber not functioning or leaking severely, exhaust system leaking or insecure, the aim of a headlamp is not within limits laid down in the requirements. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1991 Yamaha Unclassified fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: a shock absorber not functioning or leaking severely, exhaust system leaking or insecure, the aim of a headlamp is not within limits laid down in the requirements. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1991 Yamaha Unclassifieds fail their MOT?
Around 11% of 1991 Yamaha Unclassifieds fail their MOT test, meaning roughly 1 in 9 don't pass first time. The most common reasons are a shock absorber not functioning or leaking severely and exhaust system leaking or insecure. Pre-checking these items can significantly improve your chances.
What should I check before my 1991 Yamaha Unclassified MOT?
Before your 1991 Yamaha Unclassified MOT, check these commonly-failed items: a shock absorber not functioning or leaking severely, exhaust system leaking or insecure, the aim of a headlamp is not within limits laid down in the requirements. Most are visual checks you can do at home – look for worn tyres, test all lights work, and check for obvious damage or leaks.
Is the 1991 Yamaha Unclassified reliable for MOT?
With a 88.7% MOT pass rate, the 1991 Yamaha Unclassified performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.