Yamaha F100B F100C Outboards Factory Service Manual, Page 266Get this manual
Bracket unit
Disassembling the oil pump
1Remove oil seals and 2, the cover 3, gasket 4, shaft 5, and O-rings 6
S60C7060
Bearing inner race attachment: 90890-06662 2Install the new oil seal into the oil pump body 4
A S60C7055