Honda Outboards BF40A/BF50A Service Manual, Page 222Get this manual
HONDA BI=3E5A45A
Operation
1) Turning the power trimtilt switch or power tilt switch ON to the UP sidethe UP relay in the power tilt relay activates, contact point moves in the direction shown by the solid line and arrow, electric current flows in the direction shown by the broken line and arrow, and the motor rotates in the normal direction2) Turning the switch ON to the DOWN side, the relay in the power tilt relay activates, contact point moves in the direction shown by the dot line and arrow, and the motor rotates in the reverse direction
"-'2Power trim warning system
The 8F35A 45A is equipped with the warning system which sounds when the trim angle exceeds 20 so that the power