Small Engines (Lawn Mowers, etc.): Solenoid testing and bypassing safety switches, safety switches, key switch

Question
I have read through several answers about testing the solenoid on a mower and they usually say something about having a jumper from the big terminal to the small terminal.

I just want to make sure I know what the "small terminal" is. The solenoid I want to test has two threaded posts and two small tabs to connect wires to. Is the "small terminal" one of the small tabs or is it the other threaded post?

Also, on the solenoid (I believe) is where the wire to the safety switches is connected. Is there any way to bypass the entire loop of safety switches on the solenoid? I don't want to bypass each one individually if I don't have to.

Thank you.

Tim

Answer
You can bypass all safety switches by splicing a wire from the S terminal on the starter key switch to the solenoid exciter post.

On the 2 post solenoid one post is the exciter and the other is usually a ground.  The exciter posts completes the connection between the battery and starter, the 2 big post, when 12 v DC is applied the exciter post.

When you turn the key with everything working correctly 12v DC "closes" the solenoid circuit and the starter turns the engine.

Let me know if this helps.
Eric