How To Bench Test Starter. This is where the StartCrank wire is attached to. Hold the black lead to the solenoid housing and the the red lead to the terminal on the starter solenoid.

Here is a quick video on how to test a Starter and Solenoid assembly using just a screwdriver jumper wires and a 12v battery. Attach the other end of that same cable to the starter motor case as shown on the photo above. Attach the RED wire of the battery.
Touch the other end of.
You can use a multimeter to check the wires. The other end will need to be attached to the starter case. Place your starter in the vise or have someone hold it carefully. The Heavy Equipment Mechanic Im going to connect you with knows all the tricks and shortcuts.

