Please post a pic of plugs. What is causing the plugs to foul?
Best way to answer your question may be to take an old plug, bent the metal tip on plug to short it out completely. If engine them runs on one good plug and one shorted plug, then there has to be enough energy from coil to run bike.
Do your plugs foul because engine is burning oil, oil fouled? Or are they just carboned up because you don't have complete combustion?
I have a kohler command, 20 hp. One cylinder would turn plugs black because of incomplete combustion. Engine passed compression and leak down test. I finally pulled head, lapped in the valves, works great.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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