ktoom
ArboristSite Guru
I purchased a used PS5100 on flea bay. The seller said it ran great. When i got the saw i removed the muffler only to see some scoring of the piston. Before i pulled the cylinder i checked the compression and it was at 190psi. I didn't release the air in the gauge so i could see if it would drop. It stayed right at 190 psi for over 20mins. When i pulled the cylinder off I got to see it better. I think i can get away with just cleaning up the piston/cylinder and just re-ring it. The piston has a small burr on the top and where the ring seats on the piston. Judging from my pic's, do you think it was the typical lean seizure?