Harold Bawlzangya Racing

Letting the oil flow

As I’m putting the 220 together, this was a good time to modify the clutch hub I have been using.  One of the used YZ clutches I bought a while ago came with a Hinson hub.  That hub had a lot of big oil holes in it:


 (click picture to enlarge)

The stock hub has 4 small holes:


 (click picture to enlarge)

So without going too crazy, I went from 4 small holes to 16 larger ones:


 (click picture to enlarge)

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