The engine is not starting. To wit:

The tractor sat out in the weather, uncovered and unprotected from rain, snow, heat, cold, and whatever.

Here's what i need to know: There is rust behind the flywwheel magnet, and the aluminum pieces that hold the magnet. That piece is held on by 2 screws that look like Phillips screws, but have one tab missing from the screw head--sort of like a crippled Phillips.

I have replaced the ignition coil/armature, (give it a name)Ignition switch, jumpered the seat, and all that. Still no spark. Would the rust behind and around the flywheel magnet be the cause of no spark?

I have compression, enough to make it run. And gas in the tank. The mowing deck isn't on it. I replaced the solenoid used for starting. Jumpered the seat switch. That was done by the previous owner, who used the tractor.

Could one of the wires that are connected to the ignition coil be the wire that shuts off the current to the spark plug?

Right about now, i'm ready to sell it. It'll go dowwn the road, if i don't find the problem.