just bought a 97 1100 stx and took it to the lake and idled around for about 10 mins. i got back to the house pulled plugs and the one closest the the back had fire but the plug had NOTHING on it, middle has fire and looked fine, front has no spark and also as clean as first one. what would cause no spark to one plug? i cut 1/4 of wire and it didnt work. I have a shipment of 3 carb rebuilds, fuel line, fuel filter, and oil block off kit hopefully it will solve no fuel to the two cylinders?