I'm doing another project and want to make sure I pick a working motor to use. How do you check a SEPEX motor using a 12 volt battery to jump test? I am able to make a series motor spin by connecting A1 to S1 together and attach jumper leads to A2, S2. The two SEPEX motors in question, however, will not spin when I do this. I know for sure one of the motors was working in my golf cart. I just mixed up the two and don't remember which is the good one.