Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 216Get this manual
17) Install the tilt lever spring with the short end toward the tilt lever bracket VERBRACKET
18) Set the locking tab in the hole of the tilt arm as shown
TILT SHAFT
V[I] ARM TILT
19) Install new lock washer by aligning the locking tab with the hole on the tilt arm