The complete muffler carries away the exhaust gases and dampens the noise of the 2-stroke engine of the Good Luck chainsaw. Power depends on its condition: a clogged or burnt-through muffler prevents the engine from exhaling properly.
It is worth replacing if the body has burned through, has cracks, the exhaust port is heavily coked, or power is lost while the carburetor is in good order. If you are unsure about compatibility, call us: we will advise by saw model.
