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this might be a stupid question but what does drilling out the breather t mean? How do you do it and what do you gain from it.

-colin
 

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you drill the big side to the same size as the hrc kit T-breather with the proper size bit...not sure on that size????. It is said to help releave crankcase presure i belive.....but i could be wrong
 

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I just did mine and I started with a 1/4 inch bit but ended up using a 9/32 i believe...could've used one size bigger. But it looked like the 3/8 would've been way too big
 
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