Honda BF35A-BF45A Outboard Motors Shop Manual., Page 122Get this manual
CONNECTING ROD CAP REASSEMBLY: Install the connecting rod caps aligning the marks of the connecting rods and caps
THRUST BEARING
REASSEMBLY: Install with the grooved side toward the crankshaft
[2] GROOVE
PISTONICONNECTING ROD
REASSEMBLY: Assemble so that "t" mark on the piston points in the same direction as "ZV5" mark on the connecting rodPISTON