DescriptionThis video provides step-by-step repair instructions for replacing the spark plug on an Echo string trimmer. The most common reasons for replacing the spark plug are when the string trimmer won’t start, stops after a few seconds, or runs poorly.
All of the information for this spark plug replacement video is applicable to the following brands:
Echo, Mantis
Step-By-Step Instructions1
Before you replace the spark plug on your string trimmer…
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…first make sure the engine has cooled.
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Next, remove the wire and boot from the spark plug.
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Use a socket or a spark plug wrench to help remove the old spark plug.
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Install the new spark plug…
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…by threading it into the cylinder head.
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Be careful not to over tighten.
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Once secured, attach the wire and boot to the new spark plug…
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…and your string trimmer should be ready for use.