1977 Yamaha Rs100 MOT Pass Rate
Pass rate for Rs100 models manufactured in 1977, based on 30 real MOT test results.
Data from official DVSA MOT testing records
1977 Yamaha Rs100 MOT Analysis
The 1977 Yamaha Rs100 has an MOT pass rate of 73.3% based on 30 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,501 miles on the odometer. With a 26.7% failure rate, the 1977 Rs100 is rated as "Very Good" for MOT reliability.
The leading cause of MOT failure for the 1977 Yamaha Rs100 is Motorcycle lighting and signalling, responsible for 3.3% 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 tyres and wheels is the second most common issue at 3.3%.
Top failures specific to 1977 models only. The overall Rs100 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 | 3.3% | 1 |
| 2 | Motorcycle Tyres And Wheels | 3.3% | 1 |
Failures per 10,000 Miles
avg. 13,501 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 lighting and signalling | 2.47 | 3.3% | 1 |
| Motorcycle tyres and wheels | 2.47 | 3.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1977 Yamaha Rs100 has an MOT pass rate of 73.3% based on 30 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,501 miles on the odometer. With a 26.7% failure rate, the 1977 Rs100 is rated as "Very Good" for MOT reliability.
If you own or are considering buying a 1977 Yamaha Rs100, 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 13,501 miles, many of these vehicles are still in good mechanical condition.
Motorcycle lighting and signalling — 3.3% of failures
Motorcycle lighting and signalling issues account for 3.3% of MOT failures on 1977 Yamaha Rs100 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 tyres and wheels — 3.3% of failures
Motorcycle tyres and wheels issues account for 3.3% of MOT failures on 1977 Yamaha Rs100 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.