Long story short. Had some problems with my riding mower, B&S 31q777-0036. I took the sump cover off to inspect and see what all the noise was about. I didn't find much majorly wrong in this area, but I found a few extra parts laying in the case. From what I can tell they are the compression release mechanism. I cannot find anything that shows exactly how these parts should be reassembled. Seems like the motor would work without these parts, but I'm not a B&S engineer. Can someone point me in the direction of good documents on the compression release mechanism? Or make an experienced statement as to if I should or should not reassemble the motor without them?