Onan 4000 Microliite Carb Spewing Gas from Air Filter

Still starting great
Do you guys drain the float bowl after use so it doesn't get gummed up in there?
That's the reason I put the fuel shut off valve on there so I could run it empty like I do on my dirt bikes and things that don't get used daily>
But when I saw how much came out when I removed the float bowl I'm thinking there's still enough in there to gum up the altitude needle at the bottom