No clue. I was running the saw and suddenly CLANK and it shut off. I knew it wasn't the brake bc the engine would still run. I suspect the pin bearing failed causing the clutch to go askew and thus the tooth on said clutch left the building. Who knows where it wound up.
Thats not bad? it looks like it has some pretty gnarly grooves that arent supposed to be there.
Nothing crazy, but I tighten the chain just so it barely touches the bar, then tighten the nuts as much as i can. I make sure the chain is still the right tension and start cutting. After researching a bit on these forums i realize that i should probably pull up on the bar whilst tightening to maintain the correct tension.