YS140L Problem

[BUDDYonRC at aol.com]

Karl
I have an L crankshaft that has an  exit/entry hole bored into the hollow 
shaft located just behind the seal  location. On the YS-140 Sport a hole in the 
same location provides case pressure  to the diaphragm. I don't know it's 
purpose on the YS-140L, It seems that the  hole was plugged on some of the L model 
engines. RE: Don Ramsey's post of a  couple of days ago. Don says without the 
plug he is getting 300 more RPM with  his YS-140.
Buddy
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