Carb tuning help
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Joined: Jun 2006
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Carb tuning help
I have a 1972 F-100. It has a 302 and Motorcraft 2100 2bbl carb. I just finished rebuilding the carb and installing it back on the engine. However, I need some guidance in novice tuning of the carb. Such as, adjustments of the idle mixture screws (2 of them) and other tuning parts of the carb.
Any help would be appreciated... since I would like to get this carb back to it's original settings.
Steve
Any help would be appreciated... since I would like to get this carb back to it's original settings.
Steve
Cargo Master
Joined: Sep 2004
Posts: 2,691
Likes: 6
The idle mixture screws are easy. Those screws adjust the amount of air that enter the carb when the engine is idling. I think that the rebuild instructions say to screw them all the way in and then back them out 1 1/2 turns. If your truck idles fine then you're good to go. Otherwise back each one out a little at a time until it does idle. The more you back them out the more air is allowed in the carb.
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