Re: Resistor on JD 50

Posted by buickanddeere on November 22, 2004 at 13:21:15 from (192.75.48.150):

In Reply to: Resistor on JD 50 posted by Bruster on November 22, 2004 at 12:03:43:

Most people never read the wiring diagram and did not know a gas/all-fuel 50 used no ballast resisitor from the factory and a 3.0ohm 12V coil.
The ballast resisitor and a 1.5 ohm 6V coil gets used on a 12V system with bypass starting.
When cranking a temporary switch closes and applies full battery voltage to the coil thus bypassing the ballast.
The idea is to still have a strong spark even when the electrical system voltage is dragged down while cranking.
In a word, hurl the ballast and install a 3.0 ohm coil. It may even have a 12V/3.0 ohm coil already on there.
Or update the mechanical starter switch to the one with the bypass switch. And wire in the bypass starting circuit.

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