Starter motor, basic checks

Use a voltmeter to check that a reading of at least 12 V is obtained across the battery terminals.

If it is not, test the battery.

Use a voltmeter to check that at least 12 V is present across terminal 30 on the starter motor and the negative battery terminal.

Use a voltmeter to check that operating voltage is present on the +50 terminal.

If it is not, check the wiring between the battery and the starter motor.