Chainsaw spark arrestor maintenance

Purpose of a chainsaw spark arrestor

Spark arrestors are screens that limit the size of particles sometimes found in the exhaust gases of outdoor power equipment.

The idea is that by limiting the size of the exhaust particles (piece of carbon or other small debris), the thermal mass of the particle can be made small enough that it is no longer considered a serious fire hazard.

Where is a spark arrestor located on a chainsaw?

The position of the spark arrestor may be at the front, on the top or at the side of the muffler. It is always locked with a cover and screws. Remove the cover and once it is off, remove the spark arrestor.

Spark arrestor maintenance

During inspection, make sure that the spark arrestor is intact and there are no rips and holes in it. Also, make sure that there is no excessive carbon buildup. If there is any carbon buildup, it will make your chainsaw run at a lower RPM, and it will not breathe very well.

Clean the carbon buildup from the spark arrestor with the wire brush.

Once the spark arrestor is clean, put it back in place.

Husqvarna recommends cleaning the spark arrestor on a chainsaw after every 50 hours of operation.