Just a little advice from an old mechanic---If you have flooded your engine on your tractor and wet the plugs, cleaning, drying or heating the plugs to maintain a good spark is a waste of time. In the old days of leaded gas this would work, but with the unleaded gas we have today, when drowned they are done. Throw them away and replace, no matter how good they look. Example: My BIL put a used engine in his Chevy truck, flooded it real good trying to start it. The ignition was as dead as if if there was no fire at all, but we could pull a plug wire and it would jump to ground. We took two old plugs out of another engine, put them in, and it would try to hit on those two cylinders. He bought another new set of plugs, and it started up and ran perfect. We tried switching a couple of plugs from the first set back in the engine, and they never would come back to life. I don't know why the unleaded gas does this to plugs, but I sure know the results. This is FYI just encase, you are pulling your hair out, trying to get the ignition figured out on your tractor, Dennis.