Yamaha Dt125 (1988)

169 real MOT outcomes analysed • 78.2% first-time pass rate

1988 Yamaha Dt125

CarHunch analysed 169 real MOT records for the 1988 Yamaha Dt125. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 1988 Yamaha DT125 passes MOT at 78.2%, marginally below the UK average of 80%, suggesting these 35-year-old bikes are holding up reasonably well but not exceptionally. The 16.6% rate of dangerous defects is moderate—worth noting if you're buying one, but not a major alarm bell.

At an average mileage of just over 21,000 miles, these survivors have been relatively lightly used, which likely explains their decent pass rate despite their age. With 1.27 failures and 3.8 advisories per test on average, you're looking at minor wear items and maintenance rather than structural problems—have a pre-purchase inspection focus on brakes, electrics, and fuel system components.

Average reliability In line with UK average
78.2%
pass MOT first time
UK average: ~80%
20,302
typical mileage
13,017–27,803 middle half
16.6%
ever had a dangerous defect
recorded at any MOT
1.27
avg MOT failures per car
over 4.9 tests on record

What to check before buying a 1988 Yamaha Dt125

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 Dt125

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Mileage Distribution

Most 1988 Yamaha Dt125 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.

13,017
low mileage
20,302
typical
27,803
high mileage

Half of all 1988 Yamaha Dt125 vehicles fall between 13,017 and 27,803 miles.

1988 Yamaha Dt125 — Still on the Road

Strong survival — 37 vehicles still getting MOTs in 2025, 95% of the peak.

24 37 2014 2025

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

MOT History Averages

4.9
Avg MOT tests per vehicle
1.27
Avg failures per vehicle
3.8
Avg advisories per vehicle

Most Common MOT Issues — 1988 Yamaha Dt125

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 17.6%
    Headlamp aim too high
  • 16.9%
    Rear reflector on motorcycle missing
  • 15.3%
    Drive chain worn but not considered excessive
  • 13.2%
    Drive chain slightly loose
  • 12.2%
    Rear Tyre worn close to the legal limit
  • 12.2%
    Rear wheel bearings have slight free play
  • 11.5%
    Exhaust noisy
  • 11.2%
    Horn not working

Data covers a 3-year window centred on 1988. Counts include advisories and failures.

Found a specific Yamaha Dt125?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Yamaha Dt125:

1982 1983 1985 1987 1989 1990 1991 1992 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007