Yamaha YZF-R125 Quiz
Engine

Checking the shift drum assembly

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:

  • Shift drum groove Damage/scratches/wear Replace
    the shift drum assembly.
  • Shift drum segment "1" Damage/wear Replace the
    shift drum assembly.
  • Shift drum bearing "2" Damage/pitting Replace the
    shift drum assembly.

Test yourself

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