1990 Yamaha R1z MOT Pass Rate
Pass rate for R1z models manufactured in 1990, based on 32 real MOT test results.
Data from official DVSA MOT testing records
1990 Yamaha R1z MOT Analysis
The 1990 Yamaha R1z has an MOT pass rate of 87.5% based on 32 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,687 miles on the odometer. With a 12.5% failure rate, the 1990 R1z is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1990 Yamaha R1z is Motorcycle suspension, responsible for 6.3% 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.
Top failures specific to 1990 models only. The overall R1z 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 | 6.3% | 2 |
Failures per 10,000 Miles
avg. 15,687 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 | 3.98 | 6.3% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1990 Yamaha R1z has an MOT pass rate of 87.5% based on 32 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,687 miles on the odometer. With a 12.5% failure rate, the 1990 R1z is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1990 Yamaha R1z, 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 15,687 miles, many of these vehicles are still in good mechanical condition.
Motorcycle suspension — 6.3% of failures
Motorcycle suspension issues account for 6.3% of MOT failures on 1990 Yamaha R1z 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.