The only short-term issue of the YF with ethanol was the accelerator pump diaphragm.
There is now a diaphragm made from a chemical I cannot pernounce, let alone spell, that is supposedly ethanol friendly. We offer this diaphragm for those forced to buy ethanol-diluted fuel as well as the original style for those who can buy real gasoline, in our rebuilding kits.
Like ALL zinc alloy and aluminum based carburetors, long term (30 years or so) issues include pitting in the bottom of the fuel bowl. If you plan to drive your vehicle for 30 more years, buy a spare carburetor while you are still available.
30 years is a long time!
Jon
