2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 254Get this manual
Drive shaft and lower case (T50FT50B, FT50C) Assembling the drive shaft
1Install the new drive shaft bearing into the drive shaft using pressDrive shaft holder CD: YB-06049 Drive shaft holder CD: 490890-06518 Pinion nut holder90890-06505 Socket adapter90890-06507
I Pinion nut: 95 Nm (9.5 kgfm, 68 ftlb)
Installing the lower unit
1862Y6845
Set the gearshift to the neutral position at power unit and lower unit