Quote:

IT'S ALIVE!

And now for the rest of the story.

Spark Plugs. It seems there was a crack in the electrode inside the insulator and not visible to me or the mechanics on inspection. Not just one plug, but BOTH! Both plugs looked just fine (had been replaced just a couple thousand miles ago). When cold, they fired just fine, but once hot they started failing - intermittently. I have never before had a spark plug failure cause a backfire so severe that I could feel it through the seat pan, but I guess live and learn.

Ten years ago, I'd have been ticked off for not finding this myself, but today, I'm just glad that I don't have a $300 parts bill added to the labor.

Out the door and riding again for $99.50. Man does it feel good!



Well...whoda thunk it. What plugs were they, specifically?