Honda BF115A, BF130A Outboard Motors Shop Manual., Page 326Get this manual
HONDA BF115AeI 30A
When the rods do not compress fully With the rods extended fully, push the "UP" side of the power tilt switch until the unit blows againPush the "DN" side of the power tilt switch, and be sure that the rods compressIf the rods compress fully, go to the blow pressure check (P14-20)If the rods do not compress after the step operation, push the "DM" side of the power tilt switch while pushing the piston rod B, and check whether the rods compressIf the rods compress fully, go to the blow pressure check (P14-20)[I] POWER TILT SWITCH
121 PISTON RODS B
3) If the rods still do not compress after the step operation, loosen the manual valve and compress each rodTighten the manual valve securely againPush the "UP" side of the power tilt switch to extend the rods fully, then push the "DM" side of the switch and check whether the rods compress fullyIf the rods compress fully, go to the blow pressure check (P14-20)