No power at MSD box
 

Took my 98 gun to the island and docked the boat for the night. Went to leave and no spark. Traced it to no voltage at the ignition/trigger wire on the MSD box. Applied 12v to the wire and it fired right up. Checked the ignition switch,neutral safety switch and the kill switch all work fine. I have no diagram for this boat so I'm lost as far as tracing wires. I would like to fix it correctly and not rig up something. Any diagrams out there or thoughts? Think I call Lip Ship to see if they have one.