Low power weed eater.

[jross]

I'd bet on the dirty muffler. Many people throttle down on the engine when whacking, instead of letting her rip, which plugs the muffler sooner. Do not do as I did and remove the muffler, then open up the engine to full throttle. The chain from the Beaver blade tore off it's steel wheel and something hit my leg. Luckily it was part of the plastic guard, and I finally spotted the chain from the Beaver blade 30 ft up ina sassafras tree.

 

[James]

I had the same problem with a chain saw as well with my weed eater. The problem turned out to be the spark arrestor screen was dirty. After cleaning I had to readjust the carburetor.