If it has a Key start, there will be a Starter relay on or near the starter. This relay might have 4 terminals. one of the small ones will be labeled "I" this terminal should go to the coil side of the resistor if so equipped. Some have an ignition wire from the key to the coil that is a resistor in and of itself. This would then have that I wire connected to the coil directly. (on the terminal not connected to the points) The resistor in a wire type may not be tha case on your tractor, I do not know) if you measure the resistance of the coil with it disconnected) from smapp terminal to small terminal it should be around 2.5 to 3 ohms if 6volt, or 12v for use with a external resistor. If it is a 12v no resistor required, it will measure about 4 to 5 ohms. If it is a failing coil it will have low resistance. (it could be a 12v coil failing and looking like a 6v in resistance. If you measure the voltage at the coil within 1 minute of turning it on (but not starting it), and the points are closed (normally comes to rest in that position) the voltage will read 8 or less if it has an internal resistor, and about 12.3 or more if it does not. Do not leave the key on for more than 2 minutes with it not running, it will heat the coil even if it is the correct coil. Jim
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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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