Yamaha F100B F100C Outboards Factory Service Manual, Page 168Get this manual

Yamaha F100B F100C Outboards Factory Service Manual, Page 168

Lower unit
3Install the original shim(s) and propeller shaft housing assembly into the lower case, and then install the straight key 6, claw washer 7, and ring nut 84Tighten the nut to the specified torque
S60C6270

NOTE: Install the drive shaft by lifting it up slightly, then aligning it with the pinion and the spline of the drive shaftDrive shaft holder 3: 490890-06519 Pinion nut holder 4: 90890-06505 Socket adapter 5: 90890-06507 Pinion nut: 93 Nm (9.3 kgfm, 67 ftlb)