2004 Yamaha Yn50 MOT Pass Rate
Pass rate for Yn50 models manufactured in 2004, based on 1,136 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Yn50 cars tested in 2004. Want to see how cars built in 2004 hold up over time?
View 2004 Yamaha Yn50 vintage page → (71.8% current pass rate)2004 Yamaha Yn50 MOT Analysis
The 2004 Yamaha Yn50 has an MOT pass rate of 65.2% based on 1,136 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 9,397 miles on the odometer. With a 34.8% failure rate, the 2004 Yn50 is rated as "Good" for MOT reliability.
The leading cause of MOT failure for the 2004 Yamaha Yn50 is Motorcycle tyres, responsible for 0.2% of failures. 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 range from £50–200 per tyre. Motorcycle lamps and reflectors is the second most common issue at 0.2%. Motorcycle steering follows at 0.1%.
Top failures specific to 2004 models only. The overall Yn50 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 Tyres | 0.2% | 2 |
| 2 | Motorcycle Lamps And Reflectors | 0.2% | 2 |
| 3 | Motorcycle Steering | 0.1% | 1 |
Failures per 10,000 Miles
avg. 9,397 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle tyres | 0.19 | 0.2% | 2 |
| Motorcycle lamps and reflectors | 0.19 | 0.2% | 2 |
| Motorcycle steering | 0.09 | 0.1% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2004 Yamaha Yn50 has an MOT pass rate of 65.2% based on 1,136 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 9,397 miles on the odometer. With a 34.8% failure rate, the 2004 Yn50 is rated as "Good" for MOT reliability.
If you own or are considering buying a 2004 Yamaha Yn50, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle tyres: 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. With relatively low average mileage of 9,397 miles, many of these vehicles are still in good mechanical condition.
Motorcycle tyres — 0.2% of failures
Motorcycle tyres issues account for 0.2% of MOT failures on 2004 Yamaha Yn50 models. 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 lamps and reflectors — 0.2% of failures
Motorcycle lamps and reflectors issues account for 0.2% of MOT failures on 2004 Yamaha Yn50 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 — 0.1% of failures
Motorcycle steering issues account for 0.1% of MOT failures on 2004 Yamaha Yn50 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.