Should I check the MOT history before buying a 2018 Yamaha Ys 125?

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 2018 Yamaha Ys 125?

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 2018 Yamaha Ys 125?

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.

How many 2018 Yamaha Ys 125 vehicles have had dangerous defects recorded?

22% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 2018 Yamaha Ys 125 reliable?

Based on MOT data from 833 vehicles, the 2018 Yamaha Ys 125 has a first-time MOT pass rate of 83.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2018 Yamaha Ys 125?

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 Ys 125 (2018)

833 real MOT outcomes analysed • 83.7% first-time pass rate

2018 Yamaha Ys 125

CarHunch analysed 833 real MOT records for the 2018 Yamaha Ys 125. 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 Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2018 Yamaha YS 125 passes its MOT first time in just 70.7% of cases, notably below the UK average of 80%, and one in five owners will encounter a dangerous defect at some point—a genuine safety concern that shouldn't be ignored. This suggests the model has inherent reliability weaknesses rather than isolated issues.

At under 10,000 miles on average, these bikes are relatively low-mileage for their age, yet still averaging 0.75 failures and 2.3 advisories per test. Before buying one, get a pre-purchase inspection focused on the common failure patterns, and budget for regular maintenance to address the advisories early.

The 2018 Yamaha Ys 125 passes its MOT first time at roughly the UK average rate (83.7%) — solid but worth checking this vehicle's history carefully.

⚠️ 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

83.7%

UK average ~80%

Around average

Dangerous (ever)

22.1%

At least once in MOT history

Check this vehicle

Avg failures / car

0.75

Over 4 tests on record

Moderate

Typical mileage

Middle half: 4k–12k

For context

🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.

🔧 Expect consumable spend. An average of 2.3 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 833 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?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 833 Yamaha Ys 125 cars.

Before you buy a 2018 Yamaha Ys 125

Based on MOT data from 833 vehicles — here's what to check.

📋 Check the full MOT history. 22.1% 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 →
📄 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

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (100%)	830	83.7%	0.75

Colour Breakdown

Based on 2,627 Yamaha Ys 125 vehicles registered in the UK — across all years. From DVLA registration records.

Black 36.8%

967

Red 35.4%

931

White 27.4%

719

Blue 0.4%

Mileage Distribution

Most 2018 Yamaha Ys 125 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.

7,336

typical

4,028

low mileage

12,068

high mileage

Half of all 2018 Yamaha Ys 125 vehicles fall between 4,028 and 12,068 miles.

Is the mileage you're seeing normal?

✓ Under 4,028 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.

✓ 4,028–12,068 miles — normal for age. This is where most 2018 Yamaha Ys 125s sit.

⚠ Over 16,291 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 Yamaha Ys 125 — Still on the Road

Most 2018 Yamaha Ys 125s are still being driven.

412 vehicles still getting MOTs in 2025 — 73% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

Avg MOT tests per vehicle

0.75

Avg failures per vehicle

2.3

Avg advisories per vehicle

Other model years — Yamaha Ys 125: All Ys 125 years → Which year to buy? →

2017 2019 2020

Or browse all models: Yamaha →

Compare with another model

See how the 2018 Yamaha Ys 125 stacks up against a rival.

Average reliability — agree?