Yamaha Unknown (2003)
2003 Yamaha Unknown
CarHunch analysed 876 real MOT records for the 2003 Yamaha Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2003 Yamaha has a first-time pass rate of just 5.2%—catastrophically below the 80% UK average—meaning the vast majority arrive at their MOT in poor condition. The dangerous defect rate sits at a reassuring 0.3%, so while these vehicles are generally unreliable, they're not posing an immediate safety hazard to owners.
The median mileage of 2,474 miles is suspiciously low for a 21-year-old vehicle, suggesting most of these Yamahas are either sitting unused or the dataset includes incomplete/specialist records rather than typical road cars. With almost no failures or advisories being logged (0.02 and 0.1 per vehicle respectively), the data itself appears incomplete or misclassified—if you're genuinely considering a 2003 Yamaha, get a full pre-purchase inspection from a specialist rather than relying on these numbers.
What to check before buying a 2003 Yamaha Unknown
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Yamaha Unknown
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (99%) | 870 | 4.6% | 0.02 |
| Other (1%) | 5 | 100% | 0 |
| Other (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 2003 Yamaha Unknown vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2003 Yamaha Unknown vehicles fall between 308 and 7,647 miles.
2003 Yamaha Unknown — Still on the Road
Strong survival — 12 vehicles still getting MOTs in 2024, 92% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2024.
MOT History Averages
Most Common MOT Issues — 2003 Yamaha Unknown
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
22.4%
Chain guard missing ()
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13.8%
Front Brake indicates slight fluctuation of brake effort
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10.3%
Exhaust noisy
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8.6%
Registration plate does not conform to the specified requirements
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8.6%
Front Tyre worn close to the legal limit
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8.6%
Rear reflector missing
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8.6%
Offside Rear Wheel bearing has slight play
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6.9%
Rear Brake disc worn, but not excessively
Data covers a 3-year window centred on 2003. Counts include advisories and failures.
Found a specific Yamaha Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.