Have a look, I couldn't believe how much crap there is in mine. Still running though!
Dunno why this one is so coked up. The other one I've removed the muffler from is nowhere near as bad.
Bit of discolouration on the skirt makes me think old fuel at some stage before I got it, but I'm new to this engine diagnostic/rebuild game.
I don't collect mowers. I just require Multiple Mowing Solutions™.