Should I check the MOT history before buying a 2004 Yamaha Cs50?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2004 Yamaha Cs50?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2004 Yamaha Cs50?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2004 Yamaha Cs50 reliable?

Based on MOT data from 158 vehicles, the 2004 Yamaha Cs50 has a first-time MOT pass rate of 75.9%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2004 Yamaha Cs50?

The most frequently recorded MOT issues on the 2004 Yamaha Cs50 are: Rear Tyre worn close to the legal limit (36.8% of vehicles), Front Brake pad(s) close to minimum limit (28.4% of vehicles), Headlamp at least one does not illuminate on dipped beam (26.1% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2004 Yamaha Cs50?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Yamaha Cs50 (2004)

158 real MOT outcomes analysed • 75.9% first-time pass rate

2004 Yamaha Cs50

CarHunch analysed 158 real MOT records for the 2004 Yamaha Cs50. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Mileage Distribution Still on the Road MOT Averages Compare Models

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.

We have limited data for the 2004 Yamaha Cs50 — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

75.9%

UK average ~80%

Around average

Dangerous (ever)

15.2%

At least once in MOT history

Check this vehicle

Avg failures / car

1.37

Over 5.3 tests on record

High

Typical mileage

Middle half: 6k–11k

For context

These stats describe 158 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

What tends to go wrong

Across 158 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 36.8%

Rear Tyre worn close to the legal limit · Rear Tyre valve stem slightly damaged · Front Tyre worn close to the legal limit · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Brake wear 28.4%

Front Brake pad(s) close to minimum limit · Front Brake pad(s) less than 1.5 mm thick · Front Stop lamp does not illuminate immediately a brake applies · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Lighting 26.1%

Headlamp at least one does not illuminate on dipped beam · Headlamp aim too high · Headlamp at least one does not illuminate on main beam · …

Usually cheap to fix. Worth confirming all lights work before collecting.

Exhaust & emissions 17.7%

Exhaust is leaking but is not excessively noisey · Exhaust is leaking and excessively noisey

Suspension & steering 16.5%

Steering headbearing has slight free play · Steering headbearing has excessive free play

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Data covers a 3-year window centred on 2004.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 158 Yamaha Cs50 cars.

Before you buy a 2004 Yamaha Cs50

Based on MOT data from 158 vehicles — here's what to check.

📋 Check the full MOT history. 15.2% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Mileage Distribution

Most 2004 Yamaha Cs50 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

8,342

typical

5,580

low mileage

11,223

high mileage

Half of all 2004 Yamaha Cs50 vehicles fall between 5,580 and 11,223 miles.

Is the mileage you're seeing normal?

✓ Under 5,580 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 5,580–11,223 miles — normal for age. This is where most 2004 Yamaha Cs50s sit.

⚠ Over 15,151 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2004 Yamaha Cs50 — Still on the Road

Numbers are thinning — 42% of 2004 Yamaha Cs50s are still active.

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

5.3

Avg MOT tests per vehicle

1.37

Avg failures per vehicle

2.8

Avg advisories per vehicle

Other model years — Yamaha Cs50: All Cs50 years → Which year to buy? →

2002 2003 2005 2007 2008

Or browse all models: Yamaha →

Compare with another model

See how the 2004 Yamaha Cs50 stacks up against a rival.

Average reliability — agree?