This blog is a step-by-step instructions for replacing the spark plug on string trimmers. 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.

Replacement

Before you replace the spark plug on your string trimmer, you need to first make sure the engine has cooled.
Step 1: Remove the wire and boot from the spark plug. You can use a socket or a spark plug wrench to help remove the old spark plug.
Step 2: Install the new spark plug by threading it into the cylinder head, and be careful not to over-tighten.
Step 3: Once secured, you need to attach the wire and boot to the new spark plug.
And now your string trimmer should be ready for use.

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