Cold start coil and ballast resistor

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Re: Cold start coil and ballast resistor

Postby Paul Dawson » Sat Nov 18, 2017 11:32 pm

It was to ensure the coil got sufficient power whilst the electrical system was under the load of cranking. When running the ballast resister supplied a lower voltage to the coil, but when cranking the coil received a full 12v thus effectively overpowering it temporarily.
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Paul Dawson
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