Yamaha Cs50 (2004)
2004 Yamaha Cs50
CarHunch analysed 158 real MOT records for the 2004 Yamaha Cs50. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2004 Yamaha CS50 has a first-time pass rate of 75.9%, which sits 4 points below the UK average of 80%, suggesting these ageing mopeds are slightly less reliable than the typical vehicle. The good news is that dangerous defects are relatively uncommon at 15.2%, so serious safety issues aren't a widespread concern for this model.
At nearly 9,400 miles on average, these machines are running lighter than you'd expect for a 20-year-old vehicle, indicating many have been used sparingly or well-maintained. The typical failure count of 1.37 per MOT attempt and nearly 3 advisories per vehicle point to minor wear items rather than fundamental flaws—so budget for small repairs, but don't expect major engineering surprises.
What to check before buying a 2004 Yamaha Cs50
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 Cs50
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2004 Yamaha Cs50 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 2004 Yamaha Cs50 vehicles fall between 5,580 and 11,223 miles.
2004 Yamaha Cs50 — Still on the Road
Numbers are declining — 10 vehicles still getting MOTs in 2017 (42% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2017.
MOT History Averages
Most Common MOT Issues — 2004 Yamaha Cs50
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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28.4%
Front Brake pad(s) close to minimum limit
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26.1%
Headlamp at least one does not illuminate on dipped beam
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25.5%
Front Brake pad(s) less than 1.5 mm thick
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23.5%
Rear Tyre valve stem slightly damaged
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21%
Front Stop lamp does not illuminate immediately a brake applies
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19.4%
Front Tyre valve stem slightly damaged
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19.4%
Rear Tyre worn close to the legal limit
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17.7%
Exhaust is leaking but is not excessively noisey
Data covers a 3-year window centred on 2004. Counts include advisories and failures.
Found a specific Yamaha Cs50?
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