Honda Outboards BF40A/BF50A Service Manual, Page 133Get this manual
HONDA BF35A45A
bINSTALLATION
1) Install the propeller shaft holder assembly with the "UP" mark facing upward
(1] PROPELLER SHAFT HOLDER ASSEMBLY
2) Install the claw washer and by aligning it cutout and the tab
of with the projection and the groove of the gear case
3) Apply grease to the end nutSet the gear case end nut in
the gear case with the "OFF" mark on the gear case end nut facing outTurn the end nut counterclockwise when the end nut contacts the threaded portion in the gear case, then tighten the nut by turning it clockwise by handNOTE Tighten the end nut with care not to ruin the threads