OK, I'm in a motorcycle advanced rider safety course and still breaking her in (less than 1000km). Just finished my last exercise/drill and bike stalls while idling. Feels like it wants to run on one cylinder. This is a brand new bike!
One of the instructors suggests I remove the gas cap (vapor lock?). I'm doubtful and then I go to remove it and the suction on cap has a death grip on it. Get it off and hear all this gurgling. Something is not right with the vent. By now I've already called for a tow. Half hour later he arrives (that was quick) and my gas tank has stopped gurgling. So what the hell, let's see if she'll start. It's rough but it starts, clears out and idles fine. $60 later for showing for the tow, I'm riding home skipping the tow.
Now I'm on this forum looking for why and it was here. Carbon canister is now off. Thank you, everything pretty much worked as you said it would. I just added some clamps and ty-wraps to keep the vent/drain line from moving around and tight to stuff. Time for my first service. Sorry for the dark pic, I was up late in my garage watching MotoGP while doing this, so the lighting sucks (also rotated 90 degrees).