1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 98Get this manual

1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 98

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GEAR CASE ASSEMBLY
Bearing housing 12 Using the handle B, install the bushingUsing the oil seal installer, install the two oil seals (one by one)
Stamped mark-
,I nstalling the taper