Removing carbon from heads and pistons.
Surely this is RV related since it is cutting into my recreational time. :h My 2 cyl opposed Briggs in the lawn tractor has progressively gotten noisier. It was knocking sort of like the same musi...
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Manufacturers usually recommended a wood device so as not to gouge. I always used a wire wheel on the heads. I would just scrape the piston so you dont get a piece of wire brush in the gap at the piston to the cylinder. Its best to run full throttle when mowing.
