Why are my spark plugs corroded?
Why are my spark plugs corroded? Dry fouling, or carbon fouling, is often caused by an overly rich condition, and the problem may lie with your air cleaner (clogged) or carburetor. Other possible causes could be low compression, vacuum leak, overly retarded timing, or improper spark plug heat range. How do you clean corrosion off spark plugs? Apply a thick and even rust-removing gel compound onto the rusted spark plug wire tip, using a spatula. Let it set for ½ hour to two hours for the compound to penetrate into the corrosion. What to do if spark plugs are leaking?...