Engine

Checking the shift forks

~1min read

The following procedure applies to all of the shift forks.

1. Check:

  • Shift fork cam follower "1"
  • Shift fork pawl "2" Bends/damage/scoring/wear
    Replace the shift fork.
Checking the shift forks

2. Check:

  • Shift fork guide bar Roll the shift fork guide bar on a flat surface.
Bends Replace.

WARNING Do not attempt to straighten a bent shift fork guide bar.

Checking the shift forks

3. Check:

Shift fork movement (along the shift fork guide bar) Rough movement Replace the shift
forks and shift fork guide bar as a set.

Checking the shift forks

Test yourself

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