Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums - View Single Post - Effects of ignition coil connected wrong?
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post #3 of (permalink) Old 08-31-2016, 04:19 PM
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Reversing the red & black wouldn't change which plugs were sparking, but it might be causing a v- instead of a v+ in the coil, reversing the direction that the spark travels across the gap. Maybe. If so, I would imagine it would cause premature wear of the 'L' shaped piece of the spark plug.

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