Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 308Get this manual
bINSTALLATION Install the power trirntilt motor in the reverse order of removal[3] 78-14 UNF SELF-LOCKING NUT (2)
Tighten to 39 N-rn (4.0kgf-m, 29 Ibf.ft) first, then back off 12 turn out (180)
[4] 15 mm E-CLIP
[22] mm WASHER