Originally Posted by Notaduke
Miraculously, I returned to where I recall detecting the change in exhaust note to search for the screen/screw retainer, and actually found both!
I suspect there must be something missing still, although I have both parts, since the the diameter of the screen (shaped like a bottle cap) is considerably smaller than the screw retainer. Does the proper screen have some sort of ring that the perforated bottle cap attaches to?
Hopefully I finally figured out how to post a picture image!
If the picture you posted is your screen then you only found half of the screen. The other half has the flange on it. It must have come apart when it fell out. The two screens are pressed together. My daughter says it looks like a pie pan with a pie in it, when it's in one piece.