I am tearing my bike down for a water seal replacement (its toast) and other PM items to find this in my air box. I just got this bike so I am learning new things about it as I am tearing it down.
It appears the PO installed some sort of trap in the airbox. It looks like they put a piece of plexiglass in the lid to form a trap. I assume the first owner because the second owner did nothing to it other than oil and gas.
Its obvious that this has trapped a lot of crap from the water seal destroying itself and there is no sign of sludge anywhere past the filter near this trap, in the upper right corner.
Just curious if anyone has seen anything like this. I have searched these forums for quite some time and have never seen anything of the sort.
This airbox mod?
, on Flickr