RE: Spark Plug Cap Question
I am going to test the spark with the spring "ground device" and then without it. Below in the photois my SPARK TESTER. Jody (from Valley View RC) sent me a little device to simulate RPM and view the spark. I hooked it up to a cyl & a timing light. Works nice. I think it is a good device to have just to check for RF signals that may mess up your radio.....without flying & crashing to find out!!!!Next is too test actual advance while engine is running.Capt,n <hr />