I just did this last week since I hadn't run it in months. Pulled it out and drained the old yellow gas. Cleaned the carb and ordered an air filter, mine had been soaked with fuel at some point. Changed the oil, put some ethanol free in it and ran it until dry. Then drained the bowl too. Ordered a K&N air filter this time so I won't be stuck needing one again. Just wash it out an go.
All the newer Ractrac stations have ethanol free. I keep a 30 gallon drum on a dolly with a hand pump. I keep it full, but make sure to use it to fill lawnmowers, trimmers, 4 wheelers, etc. So it stays pretty fresh. And I can roll it on the trailer and strap it down if we decide to go on an ATV excursion. Cost about $90 compared to the $300 I was looking at for a 30 gal. fuel caddy.