Honda Outboards BF40A/BF50A Service Manual, Page 210Get this manual
HONDA BF35A4SA
POWER TILT MOTOR (Power trimtilt type only)
Check for continuity between the terminals
SOLENOID SWITCH (Remote control type only)
Attach the tester leads to the two terminals at the solenoid switch and check for continuityThere should be continuity when the switch knob is pushed
THROTTLE SWITCH (Power trimtilt type only)
Attach the tester leads to the two terminals at the throttle switch and check for continuityThere should be continuity when the switch knob is pushed