Ive got the starter for a 25 mercury that will not activate and spin. I just shined up the armature the brushes are nice big and clean there's no solenoid it's attached straight to the battery and does not spin over. Battery's charged enough to spin a starter over I checked that. When I checked the actual starter for. 12v I was testing the positive stud not the wire. I can't get this one to activate though. Who's got a clue?

