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Craftsman Chainsaw Won't Start? Spark Plug Replacement #848

This video provides step-by-step instructions for replacing the spark plug on Craftsman and Stihl chainsaws. The most common reason for replacing the spark plug is when the chainsaw won’t start or runs poorly and testing the spark plug proves it is defective.

All of the information for this spark plug replacement video is applicable to the following brands: Stihl, Craftsman

Tools used: spark plug wrench included with chainsaw
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Ignition Coil and Spark Plug Testing:

How your chainsaw works:

For additional repair advice and help finding your model number visit the repair help section of our website: Chainsaw repair help