Yamaha Sr125 (2003)

170 real MOT outcomes analysed • 82.2% first-time pass rate

2003 Yamaha Sr125

CarHunch analysed 170 real MOT records for the 2003 Yamaha Sr125. 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 SR125 passes its MOT just above the UK average at 82.2%, but one in five of these bikes have recorded a dangerous defect at some point, which is a legitimate concern for safety-conscious buyers. Petrol versus diesel isn't relevant here, so focus instead on the fact that this narrow margin of reliability above the average masks genuine risk.

These 20-year-old bikes are running relatively light at 15,537 miles on average, yet they're still accumulating nearly 2.2 failures per test and almost 6 advisories each, suggesting wear-related issues are catching up despite modest mileage. Before buying, have a pre-purchase inspection performed by a mechanic familiar with small motorcycles, paying particular attention to braking and suspension components where those dangerous defects tend to cluster.

We have limited data for the 2003 Yamaha Sr125 — 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
82.2%
UK average ~80%
Around average
Dangerous (ever)
21.2%
At least once in MOT history
Check this vehicle
Avg failures / car
2.17
Over 11.4 tests on record
High
Typical mileage
14k
Middle half: 8k–22k
For context

These stats describe 170 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 170 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 44%
Rear Tyre worn close to the legal limit · Front Tyre worn close to the legal limit · Rear Tyre tread depth is below minimum requirements of 1.0mm
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Lighting 43%
Drive chain slightly loose · Rear reflector on motorcycle missing · Rear Drive chain sprocket slightly worn · …
Usually cheap to fix. Worth confirming all lights work before collecting.
Other issues 25.3%
Drive chain worn but not considered excessive · Drive chain excessively loose
Brake wear 17.4%
Front Brake disc(s) slightly worn · Front Roller brake test indicates a binding brake · Front Brake pad(s) close to minimum limit · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Exhaust & emissions 14.1%
Exhaust is leaking but is not excessively noisey

Data covers a 3-year window centred on 2003.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 170 Yamaha Sr125 cars.

UK

Before you buy a 2003 Yamaha Sr125

Based on MOT data from 170 vehicles — here's what to check.

  • 📋 Check the full MOT history. 21.2% 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 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 2003 Yamaha Sr125 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.

14,318
typical
8,423
low mileage
22,179
high mileage

Half of all 2003 Yamaha Sr125 vehicles fall between 8,423 and 22,179 miles.

Is the mileage you're seeing normal?
Under 8,423 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.
8,423–22,179 miles — normal for age. This is where most 2003 Yamaha Sr125s sit.
Over 29,941 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 Sr125 — Still on the Road

Numbers are thinning — 31% of 2003 Yamaha Sr125s are still active.

Numbers are declining — 26 vehicles still getting MOTs in 2025 (31% of peak).

84 26 2014 2025

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

11.4
Avg MOT tests per vehicle
2.17
Avg failures per vehicle
5.9
Avg advisories per vehicle
Other model years — Yamaha Sr125: All Sr125 years → Which year to buy? →
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002

Or browse all models: Yamaha →

Compare with another model

See how the 2003 Yamaha Sr125 stacks up against a rival.

Average reliability — agree?