Today I removed the coolant reserve tank to drain it, and this piece of foam seemed to fall from somewhere above. One edge of it seems to have some sticky that lost it's sticky, but I can find no clean place on the frame, under the tank, or on the reserve tank amidst the layer of road dust, which might indicate where it came from. I'm not eager to put everything back together without reattaching this, so any ideas where it came from would help me sleep. I don't have the left side middle fairing off to search for possible places.