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My Echo 355t chainsaw has been giving me fits but was nearly unuseable this past weekend. It will start fine and idle ok but it "bogs down" when throttle is applied. After watching some videos on youtube, I think it might be that the muffler (spark arrester) is plugged up. I did notice some wet black gunk around the muffler exhaust port area. Prior performance issues were decreasing lack of power and the saw would frequently die after completing a cut.
Is a plugged muffler the most likely culprit or should I look at another area first? I have not done any maintenance to the engine other than scrape off the air filter. I tried briefly running the saw without the air filter and it still "bogged down". When it bogs down it continues to run but doesn't have enough power to turn the chain.
I have numerous Stihls and an Echo 310 but this top handle 355t has become my favorite saw. It ran like a son of a gun when new and I want that performance back. I don't have any way to check the compression but I don't believe it is anywhere close to being worn out.
Is a plugged muffler the most likely culprit or should I look at another area first? I have not done any maintenance to the engine other than scrape off the air filter. I tried briefly running the saw without the air filter and it still "bogged down". When it bogs down it continues to run but doesn't have enough power to turn the chain.
I have numerous Stihls and an Echo 310 but this top handle 355t has become my favorite saw. It ran like a son of a gun when new and I want that performance back. I don't have any way to check the compression but I don't believe it is anywhere close to being worn out.