Has anyone found a cure for the Ethanol problem? I do not live in the South so I cannot run motor during winter. There is no place to buy plain gas unless you want to buy racingfuel (200 octane)
You don't want to use 200 octane, that would be worse than the ethanol.
There isn't a cure needed, it works in outboards. What is your problem and what year, HP, and SN is your motor?
I have a 302 Ford, ciria 1972, 40 gallon aluminum tank, have tried to clean out the tank, but was told that this would only last for a short time since the tank is open to the air the ethanol would draw in water vapor that would condense in the tank
You need to drain the water out of the tank. If a tank gets too much water in it, changing a filter won't help. and there are a lot of reasons to get that much water in a tank besides the fuel being ethanol.
Have a look at this link for how to get the water out. http://forums.iboats.com/showthread.php?t=212830