Ethanol sucks. My Harley hates it , my boats hate it, my truck doesn’t like it and even my lawn equipment hates that junk......so I hate it.
I get it....if you’re in the corn state, you have to love that crap, but I HATE IT.
Just go to your local airport and get some 100LL AVGAS. Dump some in with your corn-squeezins pump-gas.
You Harley will love it, your truck will love it. You should be able to get straight gas at the marina.
Make sure you run your lawn gear out of gas before putting it away, or screw the gas-cap on over a piece of plastic bag to keep it from drawing water out of the air.