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Old 06-10-2018, 06:56 PM   #2
Herb Concord Ca
Senior Member
 
Join Date: May 2010
Location: Concord CA
Posts: 755
Default Re: main jet orifice size for tillotson

The Tillotson main jet id is 0.112, the small holes on the side of the main jet are 0.030.
The suppliers sell a book on Tillotson. Search this site for Mr. Texas he has a website with pictures on the Tillotsons he has repaired.
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