I just put half a can of sea foam in each tank, top them off then run it for a few minutes at the end of the season. Never had an issue, even in carbureted engines. Boats, sleds, quads, Harley no issues in any of them.Ethanol fuel is simply a tax that goes directly to big agra. A tax that destroys the periodic use engines. Thankfully it seems to be slowly changing and clean fuel is making a comeback.
So how do we protect our sleds? What do you do to get the high octane (local is 90 max clean fuel) but not gell up and ruin your system?