Craftsman 919.678250 User Manual
Page 28
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Do not clean engine with a forceful spray of water
because water could contaminate fuel system. With
a brush or cloth clean finger guard after every use to
prevent engine damage caused by overheating.
Before running engine, clean muffler area to remove all
combustible debris.
Clean and Replace Spark Plug
Change the spark plug every 100 hours of operation or
once each year, whichever comes first. This will help
your engine to start easier and run better.
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