'89 YZ80 fork oil?

Joined
Oct 15, 2007
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#2
I am going to guess a 15wt to 25 wt for those old conventional forks.
Set the hieght by collapsing the fork tube without the spring, pour oil in, purge the oil into the inner chamber then fill with oil all the way to the to the top with the forks collapsed.

This should be a good start. The heavier wieght is used in these types of forks for better damping results.

Rob