Keep in mind i dont know much at all about these kind of things. But the switch has two layers of contacts to flow power. When looking from the top, with the screws facing you, forward position closes the bottom layer of contacts on both sides of the switch. When in reverse position, the top layer of contacts close and the bottom contacts open. Like i said, the motor spons forward like normal, but doesnt do anything when switched to reverse. This is seriously frustrating the crap out of me. I know when i figure it out, im going to feel so stupid.