I bought a husky 350 12 years ago and its been a great little saw. Back in August while bucking some logs I noticed the muffler had come loose so I tightened that up and keep an eye on it thereafter. A week later I noticed it didn't sound right...checked muffler and it was tight. Started cutting again and had no power in the cut, set it down and the rpms picked up...if I pressed on the handle the rpms would pick up....pick the saw up and would return to normal. Quit for the day took it home to check it out. I noticed the bellows were loose at the cylinder because the plastic clamp was broke. Took carb off and took muffler off and I noticed the piston and ring were badly scoured.
I ordered a new meteor cylinder and piston, crank bearings and all new parts from cylinder to carb. Saws been running great till yesterday with maybe 5 tanks of gas through it. Just for the heck of it I took the muffler off and low and behold scuff marks on the piston. Not enough to feel with fingernail but there. I've been running 40:1 mix with the screws on the rich side. Checked compression and I get 145 psi. Is light scuffing normal...it's a single light mark right in the middle of the exhaust port. Should I just run it or tear it down again. I have no way to vacuum or pressure test.
I ordered a new meteor cylinder and piston, crank bearings and all new parts from cylinder to carb. Saws been running great till yesterday with maybe 5 tanks of gas through it. Just for the heck of it I took the muffler off and low and behold scuff marks on the piston. Not enough to feel with fingernail but there. I've been running 40:1 mix with the screws on the rich side. Checked compression and I get 145 psi. Is light scuffing normal...it's a single light mark right in the middle of the exhaust port. Should I just run it or tear it down again. I have no way to vacuum or pressure test.