Re: Starter solenoid wiring help

Posted by Jon H on October 10, 2004 at 14:45:58 from (69.26.18.89):

In Reply to: Starter solenoid wiring help posted by Doug Boyd on October 10, 2004 at 14:11:49:

The solenoid terminal marked S should connect to the start switch. Depending on the type,most energize the solenoid when you supply power to the S terminal. The other type gets power for the solenoid coil from one of the large lugs (marked BAT on the solenoid case),and energizes when you ground the S terminal. With yours having both the I and S terminal,it most likley is the type that energizes the solenoid coil when power is supplied to the S terminal.
The I terminal is used on 12V ignitions systems that use an external resistor,when the solenoid is energized,the I terminal bypasses the ignition resistor to feed 12V directly to the coil to create a hotter spark for easy starting.
You can check which type of starting system you have with a test light or VOM. This way you can determine if the start switch powers or grounds the solenoid S terminal,which will determine which type solenoid you need.

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