Yamaha YZF-R125 Quiz
Engine

Checking the bearings and oil seal

In this manual: Engine
General information — 15Specifications — 14Periodic checks and adjustments — 41Chassis — 67Engine — 76Cooling system — 12Fuel system — 10Electrical system — 61Troubleshooting — 13
~1min read

1. Check:

  • Bearings

Clean and lubricate the bearings, and then rotate the inner race with your finger.

Rough movement Replace.


  • Oil seal

Damage/wear Replace.

Test yourself

A quick Yamaha YZF-R125 quiz: every answer comes with an explanation and a link to the manual page.