Yamaha Unknown (1999)
1999 Yamaha Unknown
CarHunch analysed 1,053 real MOT records for the 1999 Yamaha Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
What to check before buying a 1999 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%) | 1,041 | 2.9% | 0.01 |
| Other (1%) | 10 | 94.2% | 0.3 |
| Electric (0%) | 1 | 0% | 0 |
| Diesel (0%) | 1 | 0% | 0 |
Mileage Distribution
Most 1999 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 1999 Yamaha Unknown vehicles fall between 616 and 9,270 miles.
MOT History Averages
Most Common MOT Issues — 1999 Yamaha Unknown
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
24.3%
Exhaust noisy
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10.8%
Front Wheel bearing has slight play
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9.5%
Rear reflector missing
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9.5%
Chain guard missing ()
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8.1%
Rear Brake indicates slight fluctuation of brake effort
-
6.8%
Front Tyre worn close to the legal limit
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5.4%
Front Wheel has a slightly distorted bead rim
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5.4%
Front Brake indicates slight fluctuation of brake effort
Data covers a 3-year window centred on 1999. 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.