If they are all that way it might be a new spec or possibly the wrong plug. If one is that way it might be qc issue. Pregapped ones should come with a little cardboard sleeve over the threads that protects the gap. They sell fancy iridium and platinum plugs now too that the parts salesman will push if you go to the counter. Still only last the same 50000 on the pickup and need replaced.
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Today's Featured Article - Tractor Generators - by Chris Pratt. As a companion to the articles on three-brush and two-brush generators, it seemed fitting that we should provide our readers with a description of how a generator works in lay terms. The difficulty with all those "theory of operation" texts is that they border on principles of electricity or physics and such. Since I know nothing of either, you will have to put up with looking at the common sense side of how generators work which means we "
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