Thanks to everyone. Problem solved, the tractor starts almost instantly now. The old coil was wired up backwards, and when I had replaced it I put the new on on the same way. Switching The wires made The tractor start (and run under a load) better than it ever has. This tractor has had a reputation of being hard to start for the last 40 years because of a simple wiring error.
For other people with the same problem, the coil wired up backwards would still throw a 1/4 inch yellow spark. A test light placed between the distributor and any plug would also light up during cranking. I think running the tractor with the coil hooked up wrong damaged the coil. When I hooked it up right it the spark was still yellow, but the tractor ran great. Switching to another new coil made the spark blue. The tractor is 6 volt positive ground, when it ran badly I had the negative post going to the distributor, switching the wires so the positive post goes to the distributor made the tractor run great.
Thanks again for the help, you saved a lot of headache.
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