Chainsaw Repair

ouch that hurts to look at....why i pull the muffler on every saw i buy before i do anything....i seriously doubt you did that in the short time you had it.... think im going to pop my muffler off and take another peek it was perfect when i bought it.... thats on the exhaust side mostly right? so it would not be from ingesting fines? Man thats a ruff looking piston.....the 3.7 i have that i said is lightly scored looks mint compared to that.....Sorry to see that.... great pics and write up... thanks for all you do.....