1991 Yamaha Cw50 MOT Pass Rate
Pass rate for Cw50 models manufactured in 1991, based on 94 real MOT test results.
Data from official DVSA MOT testing records
1991 Yamaha Cw50 MOT Analysis
The 1991 Yamaha Cw50 has an MOT pass rate of 79.8% based on 94 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 4,858 miles on the odometer. With a 20.2% failure rate, the 1991 Cw50 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1991 Yamaha Cw50 is Motorcycle lamps and reflectors, responsible for 3.2% of failures. 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 range from £5–50. Motorcycle steering is the second most common issue at 1.1%. Motorcycle structure and attachments follows at 1.1%.
Top failures specific to 1991 models only. The overall Cw50 page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
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| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Lamps And Reflectors | 3.2% | 3 |
| 2 | Motorcycle Steering | 1.1% | 1 |
| 3 | Motorcycle Structure And Attachments | 1.1% | 1 |
Mileage Statistics
About This Data
The 1991 Yamaha Cw50 has an MOT pass rate of 79.8% based on 94 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 4,858 miles on the odometer. With a 20.2% failure rate, the 1991 Cw50 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1991 Yamaha Cw50, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle lamps and reflectors: 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. With relatively low average mileage of 4,858 miles, many of these vehicles are still in good mechanical condition.
Motorcycle lamps and reflectors — 3.2% of failures
Motorcycle lamps and reflectors issues account for 3.2% of MOT failures on 1991 Yamaha Cw50 models. 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 steering — 1.1% of failures
Motorcycle steering issues account for 1.1% of MOT failures on 1991 Yamaha Cw50 models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.
Motorcycle structure and attachments — 1.1% of failures
Motorcycle structure and attachments issues account for 1.1% of MOT failures on 1991 Yamaha Cw50 models. 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.