1958 Ford 861 Tractor

According to this site:
http://www.tractordata.com/farm-tractors/001/6/6/1666-ford-861.html

If the tractor has not been converted to 12V, it should be a positive ground.
Just sayin'

It's turning over, but no spark at the points? Do you have them gapped correctly?
C


Man now I'm really confused and thank you guys for the help and patience. Okay, before this whole mess I was using your typical 12 Volt battery with the normal + going to the solenoid and - going to ground with all six volt components. Note I inherited this tractor as it was so just used it until all these issues developed with burning coils and points. Now that I have a 6 volt battery I should be hooking up the negative to the solenoid and the positive to ground? I am totally confused but need to get some work done.