I have a question for anyone who cares to answer. I guess this could also apply to motorcycles. My '81 ski-doo Everest 500E fan cooled twin fouls the fan side plug frequently. I tried a hotter plug and switched from NGK to Champion with the same result. I was using a B7 resistor plug and went to a B8. The Champ was the equivelant of the B8ES. The engine has a points type ignition. After fouling, I can insert a new plug and everything's fine. That's why I think it isn't the coil or the rest of the ignition system. Although, I could be wrong. The engine has 120 psi on the fan side and 128 on the other.Single carb, so It shouldn't be a carb problem. Again, I could be wrong. Any suggestions? Thanks, Gomer
Orignal From: Off topic tech question
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