I took the switch apart and found out how the switch works .. however now the thing copper switch is fried, so I'll have to figure out how to fix that .. or I'll just have to make my own switch.

Here is a picture of the switch -




The copper piece that is circled in red is what burnt off. When the motor got up to speed the force of the motor pulled down (green arrow) and allowed the connection between the top two.

Basically it needed to be oiled also .. as i had to spin start the motor no matter what series I connected them.

If I would have known it was that easy to take it apart I would have done that from the start ops:

Hopefully I can get it now ..


EDIT:

Red - Yellow/Black for start

Seems either Red - Yellow or Red - Black for run.

 

Is it possible this motor is DC voltage? Generally all treadmill motors (being variable speed) are DC. Three leads out is odd - common lead to 1/2 of field and armature?