DescriptionThis video provides step-by-step instructions for replacing the spark plug on a Ryobi string trimmer.
All of the information in this replacement video is applicable to the following brands: Ryobi
Step-By-Step Instructions1
Before you replace the spark plug in your string trimmer, make sure the engine has cooled.
2
Remove the ignition coil wire from the spark plug.
3
Use a 3/4 inch socket or a dedicated spark plug wrench to help unthread the old plug before you install the new spark plug.
4
Confirm the spark gap matches manufacturer's specifications.
5
Thread the new plug into the cylinder.
6
Be careful not to strip the threads by over-tightening.
7
Attach the ignition coil wire to the new plug and your string trimmer should be ready for use.