"Dry Gas" is not ethanol. The good stuff is isopropyl alcohol. The cheap stuff is methanol and should be avoided at all costs. I've had success with fixing water issues in gasoline with Dry Gas even though most of the gasolines available these days have 10% ethanol in them. You'd think that the ethanol would help with water issues but it doesn't and seems to make almost everything worse.

A little bottle of Dry Gas will only cost a couple of bucks, it won't hurt anything, and it may actually make the thing run.

See if you can find gasoline without ethanol in it. It's nearly impossible in some states but as a last resort, try to find an airport which has "MoGas" available. It's non-ethanol unleaded gasoline for airplanes and most places will sell it to you in your gas can even if you don't drive up in your airplane. Expect to pay $4.00 to $5.00 a gallon for it but it's well worth it. Carburetors for small engines cost $100 to $200 or more and the good fuel is well worth the cost.