Honda BF50 (5HP) BF5A Outboard Motors Shop Manual., Page 51Get this manual
HONDA BFBOeBF5A
OILSEAL
ASSEMBLY: 1) Drive the oil seal in using the Driver and Attachment (special toots)2) Apply grease the lip of the oil seal
[I] DRIVER
[2] ATTACHMENT (37 40 mm) NO.07746-0010200
bINSPECTION CRANKSHAFT BEARING FREE PLAY
1) Clean the bearing in solvent and dry it2) Spin the bearing hand and check for playReplace the bearing if it is noisy or has excessive play[I] PLAY