Yamaha Yz450f MOT Pass Rate
Overall pass rate across all manufacture years, based on 178 real MOT test results. Failure rate: 19.7%.
Data from official DVSA MOT testing records
Yamaha Yz450f MOT Reliability Overview
The Yamaha Yz450f is a rare vehicle in the UK, with 178 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 80.3% and a failure rate of 19.7%, which is well above the UK average of approximately 37%.
Based on this data, the Yamaha Yz450f earns a "Excellent" reliability rating. The average Yamaha Yz450f presents for MOT with approximately 1,500 miles on the clock.
The most common MOT failure for the Yamaha Yz450f is Motorcycle steering and suspension, affecting 7.9% of all tests. 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. The second most common issue is Motorcycle suspension at 6.7%. Motorcycle structure and attachments rounds out the top three at 5.6%. 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
* 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 Steering And Suspension | 9.0% | 16 |
| 2 | Motorcycle Suspension | 6.7% | 12 |
| 3 | Motorcycle Structure And Attachments | 5.6% | 10 |
| 4 | Motorcycle Brakes | 5.6% | 10 |
| 5 | Motorcycle Lighting And Signalling | 4.5% | 8 |
| 6 | Motorcycle Tyres | 3.9% | 7 |
| 7 | Motorcycle Fuel And Exhaust | 2.8% | 5 |
| 8 | Identification Of The Vehicle | 2.8% | 5 |
| 9 | Motorcycle Reg Plates And Vin | 2.2% | 4 |
| 10 | Non-component Advisories | 2.2% | 4 |
| 11 | Motorcycle Tyres And Wheels | 2.2% | 4 |
| 12 | Motorcycle Wheels | 1.7% | 3 |
| 13 | Motorcycle Audible Warning (Horn) | 1.7% | 3 |
| 14 | Motorcycle Lamps And Reflectors | 1.7% | 3 |
| 15 | Motorcycle Steering | 1.7% | 3 |
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Mileage at MOT
The average Yamaha Yz450f has 1,500 miles when tested for MOT.
About Yamaha Yz450f MOT Data
The Yamaha Yz450f is a rare vehicle in the UK, with 178 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 80.3% and a failure rate of 19.7%, which is well above the UK average of approximately 37%.
For Yamaha Yz450f owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle steering and suspension and motorcycle 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 Yz450f is likely to perform.
Motorcycle steering and suspension — 7.9% of failures
Motorcycle steering and suspension issues account for 7.9% of MOT failures on the Yamaha Yz450f. 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 suspension — 6.7% of failures
Motorcycle suspension issues account for 6.7% of MOT failures on the Yamaha Yz450f. 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 structure and attachments — 5.6% of failures
Motorcycle structure and attachments issues account for 5.6% of MOT failures on the Yamaha Yz450f. Motorcycle structure and attachments 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 Yz450f?
Based on 178 MOT tests in our database, the Yamaha Yz450f has an overall pass rate of 80.3% (19.7% fail rate).
What are the most common MOT failures on a Yamaha Yz450f?
The top 3 reasons a Yamaha Yz450f fails its MOT are: 1. Motorcycle steering and suspension (7.9%), 2. Motorcycle suspension (6.7%), 3. Motorcycle structure and attachments (5.6%). Check these areas before booking your MOT.
Is the Yamaha Yz450f reliable?
With a 19.7% MOT failure rate, the Yz450f is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Yamaha Yz450f?
Based on failure data, focus on: Motorcycle steering and suspension (7.9%); Motorcycle suspension (6.7%); Motorcycle structure and attachments (5.6%). 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.