GREAT webpage on the Carter YF carb

[jamyers]

This guy made a lot of things clear(er) for me tonight when I rebuilt a YFA, especially how vacuum on the backside of the accelerator pump controls how high the rod inside the jet is, which determines rich / lean based on engine load.

Ingenious Design those Carter boys came up with!

http://oldihc.org/tag/carter-yf

 

[mustang6]

That is a great web site thanks. Also shows me why the Carter YF carbs don't handle it well when they sit unused for awhile- that whole pump diaphram/lifter assembly gets gummed up when the fuel dries up or varnish builds up and doesn't want to move freely.

 

[Frankenstang]

That is a great web site thanks. Also shows me why the Carter YF carbs don't handle it well when they sit unused for awhile- that whole pump diaphram/lifter assembly gets gummed up when the fuel dries up or varnish builds up and doesn't want to move freely.

X2 Great link for usually HTF Carter YF info

ditto gum issues ...especially with ethanol mix (aka varnish by the gallon )