Honda BF35A-BF45A Outboard Motors Shop Manual., Page 463Get this manual
SWITCH PANEL WIRING DIAGRAM CAUTION: First, check whether the harnesses are connected as shown in the wiring diagram, then connect the battery and turn the power switch ON check for proper condition of the electrical parts and wire harnessWhen the Honda recommended wire harness is used, connect the BlackIGreen and GreenIBlack terminalsBefore reconnecting connectors, check the carefully make sure that their terminals are not bent, exposed, or disconnectedWrap the free terminal with piece of vinyl tape or equivalent insulate them securely If terminal is oxidized or corroded, remove the oxidation or corrosion with nonconductive plastic scrub pad and contact cleaner, before reconnecting
Be sure reconnect connectors by inserting them the receptaclesCheck locking connectors be sure that locking device are locked in place securelyCheck insulators make sure they surround their connectors completelyDo not fold up the mouths of insulatorsBefore reconnecting wire connectors, check them to make sure that the covers are not torn or broken, and that the gaps of female terminals are not overly expanded and looseDo not break the coverings of wire harnessIf the covering of wire harness if broken, either repair it with electrician's tape, or replace it