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  1. Spark Plug wires question - cm400a

    Electrical Discussion
    Hello! My 81 cm400a has "cracks" around both of the "boots" (correct term?) that attach to the spark plugs. The one on the right I can lift off the spark plug with no resistance what so ever like it's just "sitting on it". The one on the left feels like it "clicks" up/down and it seated. I...