Svlmustang
Well-Known OPE Member
- Local time
- 6:08 PM
- User ID
- 11355
- Joined
- Jan 1, 2020
- Messages
- 90
- Reaction score
- 110
- 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
				
			 
				
 
 



 
 
		 
			 
			 
			 
			 
			 
			 
 
		 
 
		 
		 
 
		 
 
		 
 
		