1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 9Get this manual
For lower unit service 1Driver rod PINYB-06071 Attachment PINYB-06081
YBQ6228
These tools are used when loosening and tightening the pinion gear nut3YBQ6071
Handle PINYB-6071 Attachment PINYB-06105
YB-06081 VB-S071