Svlmustang
Well-Known OPE Member
- Local time
- 9:00 AM
- User ID
- 11355
- Joined
- Jan 1, 2020
- Messages
- 90
- Reaction score
- 107
- Location
- Pennsylvania
Hi all. I'm new and looking for advice and inf . Ty in advance for any. I bought the knock off 372xp new. First it has all silver bolts. Shouldn't at least the cylinder bolts be black?? I put a new hyway big bore pop up piston and cylinder on it. Base delete with yama lube. Squish around 25 thousandths I had 180 plus compression. I started and warmed up the saw and let it cool off a few times. put a bar and chain on and tested it out. Only cut 10 blocks of wood. Shut it Down let it cool off and it wouldn't crank like it was locked up. I took muffler off and could see a piece of a caber ring caught in exhaust port. I took the cylinder off and one of the rings was broken. The saw seemed to be running fine. Then took off like crazy. Went lean I guess. Did that cause my top ring to break?? Also is it even worth messing with another piston? The cylinder looks fine. Advice?? Ty