Yamaha Cs50 (2005)

128 real MOT outcomes analysed • 75.1% first-time pass rate

2005 Yamaha Cs50

CarHunch analysed 128 real MOT records for the 2005 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 2005 Yamaha CS50 passes its MOT first time in 75.1% of cases, which is below the UK average of 80%, and one in five of these scooters have recorded a dangerous defect at some point—a meaningful safety concern for buyers. The petrol-only nature of this model means there's no fuel-type variation to consider.

These machines average just 4,747 miles, suggesting they're lightly used despite being nearly 20 years old, yet they still rack up an average of 1.42 failures and 3.3 advisories per test. Before buying, get a pre-purchase inspection focused on the braking and lighting systems, where dangerous defects typically emerge on older scooters like this one.

We have limited data for the 2005 Yamaha Cs50 — treat the figures below as indicative rather than definitive.

⚠️ Over 1 in 5 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
75.1%
UK average ~80%
Around average
Dangerous (ever)
21.1%
At least once in MOT history
Check this vehicle
Avg failures / car
1.42
Over 5.3 tests on record
High
Typical mileage
4k
Middle half: 3k–6k
For context

These stats describe 128 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 128 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 2005.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 128 Yamaha Cs50 cars.

UK

Before you buy a 2005 Yamaha Cs50

Based on MOT data from 128 vehicles — here's what to check.

  • 📋 Check the full MOT history. 21.1% 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

Mileage Distribution

Most 2005 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.

4,174
typical
2,848
low mileage
5,504
high mileage

Half of all 2005 Yamaha Cs50 vehicles fall between 2,848 and 5,504 miles.

Is the mileage you're seeing normal?
Under 2,848 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.
2,848–5,504 miles — normal for age. This is where most 2005 Yamaha Cs50s sit.
Over 7,430 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2005 Yamaha Cs50 — Still on the Road

Numbers are thinning — 33% of 2005 Yamaha Cs50s are still active.

Numbers are declining — 10 vehicles still getting MOTs in 2020 (33% of peak).

30 10 2014 2020

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2020.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

5.3
Avg MOT tests per vehicle
1.42
Avg failures per vehicle
3.3
Avg advisories per vehicle
Other model years — Yamaha Cs50: All Cs50 years → Which year to buy? →
2002 2003 2004 2007 2008

Or browse all models: Yamaha →

Compare with another model

See how the 2005 Yamaha Cs50 stacks up against a rival.

Average reliability — agree?