I don't think anyone claimed to know more about your tractor then you. I don't even know what it is specifically. Some of us do know of Georg Ohm's Law - one of the most fundamental laws used in electronics for almost 200 years. Also about the Kettering coil and points battery ignition system.
You didn't give any specs on your tractor or what type of resistor you were using. As I stated earlier, I never heard of any 12 volt breaker-point system using a 2 ohm or a 2.2 ohm rated resistor.
The measurements on a cold resistor with no current flowing through it are pretty much useless.
I realize you were not asking for advice - but you must expect a few opinions when posting this stuff on a public old-tractor forum.
A typical resistor used in a 12 volt system will only have 1/2 ohm when cold with no current and up to 2.5 ohms @ 3 amps at 14 volts when hot and a lot of current demand.
What you stated in your original most does not make sense according to commonly used auto ignition basics and Ohm's Law.
So yeah, I don't know any specifics on whatever tractor you have and what ignition system it presently has in it. I DO know the principles of a conventional 12 volt breaker-point system.
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Today's Featured Article - Bad Vibes - by Curtis Von Fange. One of the strangest ways to communicate with our tractor is to ask it how it feels. "Ask it how it feels," you say? Yup, ask it how it feels. Now, as with the other articles in this series one has to be able to hear what 'ole blue' is trying to say in response. The nice thing about our old iron friends is that they are usually quite consistent in their response, rather unlike some people I know who might change what they say due to the weather or other mitigating circumstances. But since t
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