That's very good to hear, Jon. You and I have talked about ethanol and concerns about the accelerator diaphragm in the YF models. Over this past year I've come to wonder, however. The 3211s I'm using (which will go dry at least 6 or 7 times each year) hasn't given any trouble at all and just the other day I received a YF (which came from a known user). He believed the carburetor had never been rebuilt, had sat unused for years before he got it and he told me it had been used with ethanol laced gas since around 2008. All the gaskets were genuine Carter gaskets and I could not find any evidence to dispute what he told me. The diaphragm was still working. So possibly my initial concerns about deterioration of the diaphragm were overstated.
As for auto choke, you do know the old auto to manual choke conversion kits are still being sold, yes? They don't look to be the same quality as those made and sold in the 60s, but I imagine they would still work. For people who might have trouble sleeping if an automatic choke happened to be hiding in their garage...
I will tell you for the 1957 and newer 235s I've not found a better option for the money than the 3211s. Quick starting, smooth, very efficient and responsive. And no seeping, weeping and dribbling.
