In Reply to: Re: I could be wrong (BUT) posted by Dn-N-Tn on July 23, 2019 at 12:54:26:
Let me suggest that what you were actually doing with the plug wire trick was burning off (some of) the lead deposits that had accumulated on the electrode causing a misfire. Lead fouling at cold startup used to be fairly common - it occurred when the engine was cold and the fuel mixture was overly enriched by the application of the choke. Your trick was a quick way to burn off some of that lead. Lead free gasoline eliminated that problem and the usefulness/need for your trick. It also allowed for longer spark plug service life. If you have a misfire today you need to look elsewhere for an explanation of the cause and a proper fix.