My bike ran good with a stock pilot (22.5) and 420 main (Open airbox AEM 5 1/4" filter and outerwear). Ran good like this out in Glamis CA as well as home in WI (About the same altitude both places). Last ride was out in St. Anthony Idaho where I had to go with a smaller pilot (20) as it was running really rich.
Out in Glamis a Member here told me to go up one size pilot as I had the air screw at about 3/4 turn with the 22.5 pilot
So after returning from St. Anthony I put in 25 in and parked it for a month.
Fired it up last night, ran rich and gas was coming out the overflow. I ran it for 15 minutes, it warmed up to nearly 150F and still gas poured out whether I sat with it running or if I was moving still it came out.
Any ideas why this is happening?
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Sometimes the floats stick to the bottom of the float bowl after the fuel has evaporated from the carb.

Sometimes there is a piece of debris stuck between the needle and the seat.

Sometimes the o-ring on the outside of the seat needs replacing.