Mike, like the others said about the socket, 7/8 will do it. But, if the center electrode has square edges the old plugs are most likely fine to use. As long as the plugs aren"t wet from oil soaking or flooding they are ok to use in the tractor engines. Save the money. I have had my f-12 since 1999 and it has the same plugs in it when I bought it and they were old then, it runs like a champ! Spend the money on carb cleaner and a wire brush to clean the plugs. You will need the wire brush down the road, trust me!
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Today's Featured Article - Picking Corn - by Rick Nikolich. It was the day before Christmas shutdown at work and I asked our lead engineering expert Scott Andrzejewski what he was going to do over the holidays. He said that he had some corn that he still needed to pick with an antique one-row New Idea corn picker. Scott has a nice farm about an hour north of Lansing in St. Johns, MI. He wanted to get the rest of his corn in by the next day (Christmas Eve). We had about an inch of new snow on the ground and single digit temperatures. So in the bac
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