Throttle stuck on me several times today. I took the top off the airbox cover and staring back at me was a live mouse.

The airbox was packed with acorns. I vacuumed them out with a shop vac but now the mouse has disappeared into the headlight bucket. I have a trap out hopefully it ll get him.

I'm guessing that the throttle issues were the result of debris being sucked into the intake and jamming the throttle plate. The knock might have been the debris or a dead mouse body jamming the intake valve open till stuff got burned off. At least part of the mystery has been solved. Now I just need to capture the offending party.