For what it's worth and not everybody will agree with me, I'm not in favor of running an engine dry to store it. You only think you ran it dry. What you did was run it until it got so lean it would not run anymore and that little bit of fuel left in there turns to gum.
I prefer to have a fresh can of fuel, treat it and run the engine with this fuel for 15 or 20 minutes and then shut it down with at least a half full tank. When you restart it, be sure and use this fuel up before adding any more to it. You cannot stabilize fuel over and over or add fresh fuel to old, hoping to make it fresh again. If you are putting away a generator, take it out and start it every couple of months. This is called exercising and should be done for at least 15 minutes. Large standby generators are normally exercised once a week for 30 - 45 minutes. The reason I know this, is some of us here made a lot of money over the years making sure this actually happened - Bruce