Should I check the MOT history before buying a 2003 Yamaha Yn100?

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 2003 Yamaha Yn100?

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 2003 Yamaha Yn100?

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 2003 Yamaha Yn100 reliable?

Based on MOT data from 131 vehicles, the 2003 Yamaha Yn100 has a first-time MOT pass rate of 76.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2003 Yamaha Yn100?

The most frequently recorded MOT issues on the 2003 Yamaha Yn100 are: Front Brake pad(s) close to minimum limit (27% of vehicles), Rear Tyre worn close to the legal limit (24.9% of vehicles), Front Brake pad(s) less than 1.5 mm thick (23.7% 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 2003 Yamaha Yn100?

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 Yn100 (2003)

131 real MOT outcomes analysed • 76.7% first-time pass rate

2003 Yamaha Yn100

CarHunch analysed 131 real MOT records for the 2003 Yamaha Yn100. 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 2003 Yamaha YN100 falls slightly short of the UK average with a 76.7% first-time pass rate compared to 80%, suggesting modest reliability concerns, though the 14.5% rate of dangerous defects is manageable for a 20-year-old scooter. This is a bike that will need attention, with an average of 1.59 failures and 3.2 advisories per test indicating routine wear rather than catastrophic problems.

The median mileage of 6,855 miles is low for its age, which is typical of occasional-use scooters and actually works in your favour—these vehicles haven't been thrashed. Before buying, budget for brake and exhaust work (the most common advisory items on small scooters of this era), and have a pre-purchase inspection focus on the electrical system and suspension, which often deteriorate in storage.

We have limited data for the 2003 Yamaha Yn100 — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 of these cars 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

76.7%

UK average ~80%

Around average

Dangerous (ever)

14.5%

At least once in MOT history

Check this vehicle

Avg failures / car

1.59

Over 7 tests on record

High

Typical mileage

Middle half: 4k–10k

For context

These stats describe 131 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.

What tends to go wrong

Based on 131 cars. % = share of cohort with at least one match (advisories + failures combined).

~1 in 3 Brake wear

Front Brake pad(s) close to minimum limit (27%) · Front Brake pad(s) less than 1.5 mm thick (23.7%) · Front Stop lamp does not illuminate immediately a brake applies (19.5%) · …

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

~1 in 6 Tyre wear

Rear Tyre worn close to the legal limit (24.9%) · Front Tyre valve stem slightly damaged (17.8%) · Rear Tyre tread depth is below minimum requirements of 1.0mm (17%) · …

💡 Budget for a full set — on a vehicle this age, tyres are expected consumables. A used-car inspection will confirm how much is left.

~1 in 6 Exhaust & emissions

Exhaust is leaking and excessively noisey (16.4%) · Exhaust is leaking but is not excessively noisey (16%)

~1 in 10 Lighting

Headlamp at least one does not illuminate on dipped beam (13.8%) · Exhaust slightly deteriorated (11.8%) · Headlamp aim too low (10.7%) · …

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

Data covers a 3-year window centred on 2003. Counts include advisories and failures.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 131 Yamaha Yn100 cars.

Before you buy a 2003 Yamaha Yn100

Based on MOT data from 131 vehicles — here's what to check.

📋 Check the full MOT history. 14.5% 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 2003 Yamaha Yn100 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.

6,855

typical

4,300

low mileage

10,235

high mileage

Half of all 2003 Yamaha Yn100 vehicles fall between 4,300 and 10,235 miles.

Is the mileage you're seeing normal?

✓ Under 4,300 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.

✓ 4,300–10,235 miles — normal for age. This is where most 2003 Yamaha Yn100s sit.

⚠ Over 13,817 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2003 Yamaha Yn100 — Still on the Road

Numbers are thinning — 27% of 2003 Yamaha Yn100s are still active.

Numbers are declining — 12 vehicles still getting MOTs in 2022 (27% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2022.
* 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

Avg MOT tests per vehicle

1.59

Avg failures per vehicle

3.2

Avg advisories per vehicle

Other model years — Yamaha Yn100: All Yn100 years → Which year to buy? →

2000 2001 2002

Or browse all models: Yamaha →

Compare with another model

See how the 2003 Yamaha Yn100 stacks up against a rival.

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