Hi, I have another JD, this one no spark. I have checked coil and ohms out where it is supposed to as near as I can figure. I read that usually it is the ignition module but if that is unplugged from the coil I should get a spark. I cleaned the magnet and set the air gap still nothing, not even a weak spark so I am beginning to think that perhaps the coil is actually bad despite testing. With recent experience with JD I wonder if they have engineered the engine to need the ignition module to fire.