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Old 10-09-2020, 11:25 AM   #4
Brentwood Bob
Senior Member
 
Join Date: May 2010
Location: brentwood, ca
Posts: 3,172
Default Re: Zenith Carb Leak Puzzle

An extra gasket under the main jet can do what you describe. Dropping the level in the bowl would also help.
I have also had several castings, after derusting soaking expose a casting defect, and a crack.
The simple things sometimes are the challenge.
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