Red hot header pipe

Not mopar related, but you guys know what you are doing. I have started my bike every couple of weeks over the winter to avoid a dead battery and to keep the fuel from gunking up the injector and pump. I have been busy and haven't done it for about a month. This morning I started it, fired right up and let it run a couple of minutes and I noticed the idle never dropped and looked down and the header pipe was red hot. It's a BMW G650 (big single with fuel injection). I assume it's running really lean. I'm guessing a partially clogged injector or pump is not giving enough pressure. DAMN Ethanol!!!!

I am thinking about putting in injector cleaner or mystery oil and start it the next few mornings for a few seconds to let it work it's way through the system. Any advice?