Honda BF50 (5HP), BF5A Outboard Motors Shop Manual 2014, Page 55Get this manual
SF50SF5A OIL SEAL
ASSEMBLY: 1) Drive the oil seal in using the Driver and Attachment (special tools) 2) Apply grease to the lip of the oil seal
07749-0010000
ATTACHMENT (37 No07746-0010200
bINSPECTION CRANKSHAFT BEARING FREE PLAY
1) Clean the bearing in solvent and dry it2) Spin the bearing by hand and check for play
Replace the bearing if it is noisy or has excessive play