Yamaha Yz450 MOT Pass Rate
Overall pass rate across all manufacture years, based on 37 real MOT test results. Failure rate: 13.5%.
Data from official DVSA MOT testing records
Yamaha Yz450 MOT Reliability Overview
The Yamaha Yz450 is a rare vehicle in the UK, with 37 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 86.5% and a failure rate of 13.5%, which is well above the UK average of approximately 37%.
Based on this data, the Yamaha Yz450 earns a "Excellent" reliability rating. The average Yamaha Yz450 presents for MOT with approximately 4,345 miles on the clock.
The most common MOT failure for the Yamaha Yz450 is Tyres, affecting 10.8% of all tests. 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. The second most common issue is Motorcycle lighting and signalling at 5.4%. Suspension rounds out the top three at 5.4%. 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 | Tyres | 10.8% | 4 |
| 2 | Suspension | 5.4% | 2 |
| 3 | Registration Plates And Vin | 5.4% | 2 |
| 4 | Driver's View Of The Road | 5.4% | 2 |
| 5 | Steering | 5.4% | 2 |
| 6 | Brakes | 5.4% | 2 |
| 7 | Motorcycle Lighting And Signalling | 5.4% | 2 |
| 8 | Lamps, Reflectors And Electrical Equipment | 5.4% | 2 |
| 9 | Exhaust, Fuel And Emissions | 2.7% | 1 |
| 10 | Motorcycle Structure And Attachments | 2.7% | 1 |
| 11 | Motorcycle Audible Warning (Horn) | 2.7% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Yamaha Yz450 has 4,345 miles when tested for MOT.
About Yamaha Yz450 MOT Data
The Yamaha Yz450 is a rare vehicle in the UK, with 37 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 86.5% and a failure rate of 13.5%, which is well above the UK average of approximately 37%.
For Yamaha Yz450 owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres and motorcycle lighting and signalling 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 Yz450 is likely to perform.
Tyres — 10.8% of failures
Tyres issues account for 10.8% of MOT failures on the Yamaha Yz450. 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 lighting and signalling — 5.4% of failures
Motorcycle lighting and signalling issues account for 5.4% of MOT failures on the Yamaha Yz450. 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.
Suspension — 5.4% of failures
Suspension issues account for 5.4% of MOT failures on the Yamaha Yz450. 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.
Frequently Asked Questions
What is the MOT pass rate for the Yamaha Yz450?
Based on 37 (based on limited data) MOT tests in our database, the Yamaha Yz450 has an overall pass rate of 86.5% (13.5% fail rate).
What are the most common MOT failures on a Yamaha Yz450?
The top 3 reasons a Yamaha Yz450 fails its MOT are: 1. Tyres (10.8%), 2. Motorcycle lighting and signalling (5.4%), 3. Suspension (5.4%). Check these areas before booking your MOT.
Is the Yamaha Yz450 reliable?
With a 13.5% MOT failure rate, the Yz450 is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Yamaha Yz450?
Based on failure data, focus on: Tyres (10.8%); Motorcycle lighting and signalling (5.4%); Suspension (5.4%). 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.