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Old 12-03-2021, 01:10 AM   #2
geezer#99
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Join Date: Aug 2009
Location: Bowser
Posts: 13,516
Re: Possible Quadrajet issue

It’s a carb vent. Used to vent fumes.
Normally hooked to the charcoal canister with a long hose.
If there’s fuel present it could be from from flooding or from the carb having fuel in the bowl and the carb being tilted forward.

A secondary thought.
The carb return spring should be Hooked rearward as low as possible back to the cable bracket.
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