1985 Yamaha Xj550 MOT Pass Rate
Pass rate for Xj550 models manufactured in 1985, based on 38 real MOT test results.
Data from official DVSA MOT testing records
1985 Yamaha Xj550 MOT Analysis
The 1985 Yamaha Xj550 has an MOT pass rate of 78.9% based on 38 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 42,803 miles on the odometer. With a 21.1% failure rate, the 1985 Xj550 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1985 Yamaha Xj550 is Motorcycle suspension, responsible for 5.3% of failures. 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 range from £200–500. Motorcycle audible warning (Horn) is the second most common issue at 2.6%.
Top failures specific to 1985 models only. The overall Xj550 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 Suspension | 5.3% | 2 |
| 2 | Motorcycle Audible Warning (Horn) | 2.6% | 1 |
Failures per 10,000 Miles
avg. 42,803 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 suspension | 1.23 | 5.3% | 2 |
| Motorcycle audible warning (Horn) | 0.61 | 2.6% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1985 Yamaha Xj550 has an MOT pass rate of 78.9% based on 38 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 42,803 miles on the odometer. With a 21.1% failure rate, the 1985 Xj550 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1985 Yamaha Xj550, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle suspension: 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. With relatively low average mileage of 42,803 miles, many of these vehicles are still in good mechanical condition.
Motorcycle suspension — 5.3% of failures
Motorcycle suspension issues account for 5.3% of MOT failures on 1985 Yamaha Xj550 models. 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 audible warning (Horn) — 2.6% of failures
Motorcycle audible warning (Horn) issues account for 2.6% of MOT failures on 1985 Yamaha Xj550 models. Motorcycle audible warning (Horn) 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.