The MOT Files

Motorcycle reliability file

Yamaha YS 125 MOT pass rate & common failures

From 1,392 recorded MOT tests of the Yamaha YS 125, published by DVSA.

Data updated

Quick answer

The Yamaha YS 125 passes 74.1% of MOT tests, against 86.5% for all motorcycles. The most recorded failure is "Tyre tread depth not in accordance with the requirements", in 28.9% of failed tests.

At a glance

Recorded pass rate

74.1%unadjusted1,392 tests

12.4 points below the fleet average of 86.5%. The examples tested do not cover a wide enough spread of ages and mileages to compare fairly against the rest of the fleet, so no rank is claimed; the failure record below stands on its own.

DVSA recorded wording

Most common failure items

Share of failed Yamaha YS 125 tests in which each item was recorded. One failed test often lists several, so these do not sum to 100%.

  1. 1.Tyre tread depth not in accordance with the requirements28.9%

    59 occurrences

  2. 2.A transmission belt, chain, sprocket or pulley excessively loose or worn15.7%

    32 occurrences

  3. 3.The aim of a headlamp is not within limits laid down in the requirements13.7%

    28 occurrences

  4. 4.A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps10.8%

    22 occurrences

  5. 5.Significant brake effort recorded with no brake applied indicating a binding brake8.3%

    17 occurrences

  6. 6.Brake lining or pad worn below 1.0mm8.3%

    17 occurrences

  7. 7.A shock absorber not functioning or leaking severely8.3%

    17 occurrences

  8. 8.A transmission belt, chain, sprocket or pulley excessively loose or worn7.8%

    16 occurrences

  9. 9.A stop lamp(s) does not illuminate by the operation of both brake controls or remains on when the brakes are released6.9%

    14 occurrences

  10. 10.Brake efficiency below minimum requirement6.9%

    14 occurrences

  11. 11.A headlamp missing, inoperative or more than ½ not functioning in the case of LED4.9%

    10 occurrences

  12. 12.Rear registration plate lamp does not illuminate simultaneously with the position lamps3.9%

    8 occurrences

Warnings without a failure

Most common advisories

Share of all Yamaha YS 125 tests carrying each advisory.

  1. 1.Tyre tread depth not in accordance with the requirements11.2%

    156 tests

  2. 2.A transmission belt, chain, sprocket or pulley excessively loose or worn8.8%

    122 tests

  3. 3.A transmission belt, chain, sprocket or pulley excessively loose or worn5.5%

    76 tests

  4. 4.Handlebar fractured, excessively deformed or excessively corroded3.8%

    53 tests

  5. 5.Brake control so positioned, bent or shortened that the brake cannot be readily applied.2.9%

    40 tests

  6. 6.Brake lining or pad worn below 1.0mm2.8%

    39 tests

  7. 7.Steering head bearings excessively stiff, notchy, or with excessive wear or play2.4%

    34 tests

  8. 8.Tyre tread depth not in accordance with the requirements2.3%

    32 tests

What gets tested

The YS 125 fleet

Average mileage recorded at test
12,227
Test classes
class 1: 1,307 · class 2: 85

Compare within the range

Other Yamaha motorcycles

Common questions

What is the MOT pass rate for a Yamaha YS 125?
74.1% unadjusted, from 1,392 DVSA tests. The average across all motorcycles is 86.5%.
What does a Yamaha YS 125 fail its MOT on?
"Tyre tread depth not in accordance with the requirements" is recorded in 28.9% of failed Yamaha YS 125 tests, followed by "A transmission belt, chain, sprocket or pulley excessively loose or worn" (15.7%). One failed test often lists several items.
What mileage does a Yamaha YS 125 usually have at its MOT?
12,227 miles on average across every age tested, so a description of the fleet rather than an annual figure. Motorcycle mileages are low and vary enormously with use; a commuter bike and a weekend bike of the same age can differ by a factor of ten.

Analysis built from DVSA data of