1977 Yamaha Tt500 MOT Pass Rate
Pass rate for Tt500 models manufactured in 1977, based on 57 real MOT test results.
Data from official DVSA MOT testing records
1977 Yamaha Tt500 MOT Analysis
The 1977 Yamaha Tt500 has an MOT pass rate of 84.2% based on 57 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 744 miles on the odometer. With a 15.8% failure rate, the 1977 Tt500 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1977 Yamaha Tt500 is Motorcycle lighting and signalling, responsible for 8.8% of failures. 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 range from £100–400. Motorcycle reg plates and vin is the second most common issue at 1.8%. Motorcycle brakes follows at 1.8%.
Top failures specific to 1977 models only. The overall Tt500 page may show different rankings.
What Fails Most
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 | 8.8% | 5 |
| 2 | Motorcycle Reg Plates And Vin | 1.8% | 1 |
| 3 | Motorcycle Brakes | 1.8% | 1 |
| 4 | Motorcycle Fuel And Exhaust | 1.8% | 1 |
Mileage Statistics
About This Data
The 1977 Yamaha Tt500 has an MOT pass rate of 84.2% based on 57 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 744 miles on the odometer. With a 15.8% failure rate, the 1977 Tt500 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1977 Yamaha Tt500, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle lighting and signalling: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights. With relatively low average mileage of 744 miles, many of these vehicles are still in good mechanical condition.
Motorcycle lighting and signalling — 8.8% of failures
Motorcycle lighting and signalling issues account for 8.8% of MOT failures on 1977 Yamaha Tt500 models. 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 reg plates and vin — 1.8% of failures
Motorcycle reg plates and vin issues account for 1.8% of MOT failures on 1977 Yamaha Tt500 models. Motorcycle reg plates and vin 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 brakes — 1.8% of failures
Motorcycle brakes issues account for 1.8% of MOT failures on 1977 Yamaha Tt500 models. 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).
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.