Yamaha Sr125 (1991)
1991 Yamaha Sr125
CarHunch analysed 230 real MOT records for the 1991 Yamaha Sr125. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1991 Yamaha SR125 passes its MOT 77% of the time on first attempt, sitting 3 percentage points below the UK average of 80%—a small but real reliability gap. The dangerous defect rate of 13% is manageable and below the concern threshold, so safety issues aren't a standout worry here.
These bikes are averaging around 20,000 miles, which is relatively low mileage for a 33-year-old machine and suggests good preservation by owners. With 1.44 failures and 4.0 advisories per vehicle, you're looking at a moderately maintained classic that will likely need attention to wear items and consumables—have a pre-purchase inspection focus on brake lines, cables, and seals before committing.
What to check before buying a 1991 Yamaha Sr125
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Yamaha Sr125
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 1991 Yamaha Sr125 vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1991 Yamaha Sr125 vehicles fall between 13,345 and 27,700 miles.
1991 Yamaha Sr125 — Still on the Road
Numbers are declining — 11 vehicles still getting MOTs in 2024 (22% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2024.
MOT History Averages
Most Common MOT Issues — 1991 Yamaha Sr125
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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23.4%
Rear wheel bearings have slight free play
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22.4%
Drive chain slightly loose
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20.9%
Rear Tyre worn close to the legal limit
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16.9%
Rear Drive chain sprocket slightly worn
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16.9%
Drive chain worn but not considered excessive
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15.9%
Front Tyre worn close to the legal limit
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12.9%
Rear shock absorber has a slightly reduced damping effect
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12.4%
Drive chain excessively loose
Data covers a 3-year window centred on 1991. Counts include advisories and failures.
Found a specific Yamaha Sr125?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.