How to Test a Small Engine for Spark
If your small engine isn't starting, you'll need to diagnose many issues including the spark plug. This video walks you through the steps of how to test for a spark using a spark tester.
The cover and button on my weed eater were both worn due to prolonged use
Remove the old parts and install the new 215407 button and cover. It\'s important to be sure the tabs on the cover are aligned correctly. One of the four tabs that holds the cover in place is slightly larger than the others. The larger tab will only fit into the correct size slot.