Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 120Get this manual
HONDA BFBOAmSSA
CONNECTING ROD CAP
ASSEMBLY: Install the connecting rod caps aligning the numerical marks of the connecting rods and caps
THRUST BEARING
ASSEMBLY: Install with the grooved side toward the crankshaft[?I CRANKSHAFT
(2) GROOVE