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View Full Version : black ring



jake"08"400
02-21-2011, 02:52 PM
A black ring on the porcliean on your plug when you cut it? Doesn't that mean your jetting is to rich. I tryed to search it but nothing ever tells ya what it means when its not a chocalate brown ring that's not perfect around the porclein on the spark plug. Mine was thick and black.