Okay, first off, I'm new here and need some help. Second, I'm a woman so take it sort of easy on me as far as technical terms go.....but we just bought a 1997 Nitro with a Tracker by Mercury 60hp motor and have found a problem. Apparently, there is possibly a broken wire in the large wire that goes into the main wiring harness to the motor or something along those lines. We can try to start the motor one time and have power, but the next time, nothing. If you jiggle that large wire, tada....you get power again!! Now, does that sound like the large wire into the main wiring harness needs to be replaced??? Thanks everyone in advance for the help, and what gauge wire and type do we need or should this be done by a professional??