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The piston used in the single reed compression release
system has a cutout at the piston pin hole. The piston
must be installed with the cut-out located on the side
facing the compression release.
CYLINDER EXHAUST PORTS. The muffler and cylinder
exhaust ports should be cleaned after each seventy-
five (75) to one hundred (100) hours of operation.
It is recommended that the cylinder head be removed
and carbon cleaned from the ports, cylinder head and
top of piston.
CAUTION: Do Not Scratch Metal Surfaces.
With the cylinder head removed, remove any carbon
deposits from the cylinder wall, head, and the top of
the piston. Using a pointed 3/8' wooden dowel or
similar tool, remove the carbon from the exhaust ports.
Being sure to remove all loose carbon particles from
the engine.
NOTE: When cleaning the exhaust ports, check and
clean the compression release passage.
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