i would not drain the bowl if its only going to sit for 4 to 6 weeks. not to be disagreeable, but i've never had gas go bad that quickly. You could put some seafoam or stabil in the gas and run the bike for a few minutes to get the treated fuel through the carb, but if it was me i wouldn't do anything.
If it's real gas in there, two months is no problem.....for longer, put a little Stabil in there as above. I'd be more concerned about the battery, which should definitely have a trickle charger or be removed and charged once a month.
If it's Ethanol blend in there, have someone help you remove and dump the tank (into the lawn mower...
), drain the carb bowl with the little screw on the left side that has a tube going down to the bottom of the engine. This will be good for 6 months, especially in a garage kept above freezing.
Running it at idle for ANY amount of time during storage is actually worse than doing nothing!
If you can't ride it for 30 minutes don't start it at all.
Hope the healing goes quicker than that!