I was working on the bike and took off the right side cover to get better access under the beak. What I found was that one of the 'hoses' was not attached to the gas tank.
In the attached picture below, it was the one on the far right, marked in pink. There is a "W" etched in the plastic under the pink spot.
I ought to know this by now, but ...
Can someone tell me what the two right hoses are for?
And what happened (or did not happen) while the far right one was not attached?
Now I'll have to figure out whether I was the last one to remove the tank, or if the BMW shop was the one? I don't imagine that vibration should shake them loose if they were properly attached.