Hi Contact, You will need a low resistance (thick) cable from the battery to the starter motor. The cable fits onto the switching side of the solenoid (the heavy or large terminal of which there are two) The other cable goes into the starter motor. On the solenoid you will also see connections for two small cables. One is chassis ground and the other is from the ignition switch. The solenoid is basically a heavy duty relay. It has a throw in coil and a hold in coil. When these are activated by passing currant through them, they create a magnetic field, pulling a plunger into its center. The plunger is attached to a bus bar which carries the heavy amps which drive the starter motor. The starter has a field coil and an armature. When voltage is fed into the field coils it creates a circuit, passing through the field coils and via the brushes and commutator into the armature, through the winding and back to ground to complete the circuit. It too creates a magnetic field which spins the armature. Centrifugal force throws the Bendix forward, which engages into the ring gear and spins the engine. I don't know if you wanted to know that, but if you understand how something works its much easier to fix it. Best regards John
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