Honda BF35A-BF45A Outboard Motors Shop Manual., Page 201Get this manual
HONDA INSPECTION
STARTER MAGNETIC SWITCH ASSEMBLY
Be sure the battery is in good condition before performing this test
Connect the blacklwhite wire of the starter switch to the positive (+) terminal of the battery and black wire to the negative (-) terminal and check for continuityThere should be continuity between the terminalsAnd then there should be no continuity when disconnecting the battery
FUSEIFUSE CASE