Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 135Get this manual
HONDA BFSOAS5A
3GEAR CASE ASSEMBLY
1) Move the shift lever the "R" position, loosen the lock nut and adjusting nut connecting the shift rod and B, and
disconnect the shift rods
SHIFT ROD A
VERTICAL SHAFT
mark on the trim tab ssembly, then install the trim tab