Here is a little $175 lesson I learned the hard way.
This spring I could not get my generator to start even though there was plenty of gas in the tank and it was cranking fine. Thought about it and realized that although I filled the motorhome tank and put the required amount of StaBil in the tank before putting it in winter storage, I never thought to start the generator to make sure the StaBil laden gas went through the generator system. The gas in the generator had gummed up and the system needed to be flushed out and the carburetor cleaned.
When I picked it up I asked the Onan service manager how long I should run the generator after adding the StaBil to the vehicle gas tank and his reply was 45 minutes as the generator was "pretty stingy" in in use of fuel.
Wont make this mistake again!