Should I check the MOT history before buying a 2004 Yamaha Dt125?

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 Dt125?

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 Dt125?

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 2004 Yamaha Dt125 vehicles have had dangerous defects recorded?

26% 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 2004 Yamaha Dt125 reliable?

Based on MOT data from 432 vehicles, the 2004 Yamaha Dt125 has a first-time MOT pass rate of 76.1%, 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 Dt125?

The most frequently recorded MOT issues on the 2004 Yamaha Dt125 are: Rear reflector on motorcycle missing (51.4% of vehicles), Drive chain worn but not considered excessive (37.3% of vehicles), Rear Tyre worn close to the legal limit (36.6% 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 Dt125?

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 Dt125 (2004)

432 real MOT outcomes analysed • 76.1% first-time pass rate

2004 Yamaha Dt125

CarHunch analysed 432 real MOT records for the 2004 Yamaha Dt125. 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 Colour Breakdown Compare Models

Moderate sample. 432 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.

The 2004 Yamaha DT125's first-time pass rate of 76.1% sits 3.9 percentage points below the UK average, which suggests slightly more inconsistent reliability across the cohort. A quarter of these bikes (25.7%) have recorded dangerous defects during their MOT history, which is a meaningful concern for any prospective buyer.

These machines have covered a modest 11,731 miles at median, indicating they're often garage queens or light-use bikes, yet they still accumulate an average of 2.22 failures and 8.3 advisories per test—pointing to age-related wear rather than hard miles. If you're serious about one, budget for preventative work on the advisory items before they become failures, and insist on a full MOT history check focusing on what those dangerous defects were.

The 2004 Yamaha Dt125 has a decent first-time pass rate (76.1%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ 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

76.1%

UK average ~80%

Around average

Dangerous (ever)

25.7%

At least once in MOT history

Check this vehicle

Avg failures / car

2.22

Over 8.5 tests on record

High

Typical mileage

12k

Middle half: 7k–17k

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 8.3 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 432 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.

Watch for defects — worth knowing

What tends to go wrong

Across 432 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Lighting 51.4%

Rear reflector on motorcycle missing · Drive chain slightly loose · Rear Drive chain sprocket slightly worn · …

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

Other issues 37.3%

Drive chain worn but not considered excessive · Drive chain excessively loose · Chain guard missing

Tyre wear 36.6%

Rear Tyre worn close to the legal limit · 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 25.7%

Front Brake pad(s) close to minimum limit · Rear Brake pad(s) close to minimum limit · Front Brake disc(s) slightly worn · …

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

Suspension & steering 22.3%

Steering headbearing has slight 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 432 Yamaha Dt125 cars.

Before you buy a 2004 Yamaha Dt125

Based on MOT data from 432 vehicles — here's what to check.

📋 Check the full MOT history. 25.7% 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

Colour Breakdown

Based on 7,038 Yamaha Dt125 vehicles registered in the UK — across all years. From DVLA registration records.

Blue 46.7%

3,286

Black 37.6%

2,645

White 10.2%

720

Red 3.8%

265

Purple 0.6%

Yellow 0.3%

Multi-colour 0.2%

Green 0.2%

Silver 0.2%

Orange 0.2%

Mileage Distribution

Most 2004 Yamaha Dt125 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.

11,731

typical

7,301

low mileage

17,041

high mileage

Half of all 2004 Yamaha Dt125 vehicles fall between 7,301 and 17,041 miles.

Is the mileage you're seeing normal?

✓ Under 7,301 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.

✓ 7,301–17,041 miles — normal for age. This is where most 2004 Yamaha Dt125s sit.

⚠ Over 23,005 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 Dt125 — Still on the Road

Numbers are thinning — 39% of 2004 Yamaha Dt125s are still active.

Numbers are declining — 62 vehicles still getting MOTs in 2025 (39% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* 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

8.5

Avg MOT tests per vehicle

2.22

Avg failures per vehicle

8.3

Avg advisories per vehicle

Other model years — Yamaha Dt125: All Dt125 years → Which year to buy? →

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Compare with another model

See how the 2004 Yamaha Dt125 stacks up against a rival.

Watch for defects — worth knowing