Thread: voltage reducer
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Old 10-28-2020, 05:38 AM   #9
Bret (OH)
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Join Date: Nov 2015
Location: Blanchester, Ohio
Posts: 5
Default Re: voltage reducer

The "I" wire sends 12 volts to the coil for starting.

There is a contact inside the solenoid that powers the "I" terminal with full battery voltage when the solenoid is engaged. That voltage by-passes the ballast resistor and allows for a more powerful spark to help with starting. Then, when the solenoid drops out, the coil receives reduced voltage through the ballast circuit.
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