Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 301Get this manual
bASSEMBLY 1) Tighten new 26 mm stud bolt fully, then back it off 14 to 34 turns out2) With the friction block disc surface facing up (i.eengine under case side), install one of the friction blocks onto the friction lever shaft by aligning the cutout in the friction block with the boss on the swivel case[CUTOUT
[I] mm STUD BOLT
121 Friction Block Viewed From Top:
FRICTION BLOCK
CAUTION
Check the two friction block disc surfaces for wearIf both or either one is worn, replace with new ones as setCheck the friction block disc surface for contamination with greaseDegrease if necessary