Honda BF115A, BF130A Outboard Motors Shop Manual., Page 399Get this manual
BFI 15AeBFI3OA
2.SHIM SELECTION
PINION GEAR SHIM
Remove the 30 62 40 taper roller bearing (inner race) if it is mounted on the vertical shaft (P12-30 the base shop manual)1) Wipe the tapered part of the vertical shaft and pinion gear
[PINION GEAR NUT
with shop towel and degreasing cleaning solvent
2) Install the pinion gear on the vertical shaft and tighten the pinion gear nut to the specified torqueTORQUE: 132 N-m (13.5 kgfm, 98 lbf-ft)
Do not install the vertical shaft in the gear caseWe recommend that you attach the special tool (vertical shaft holder) at the end of the vertical shaft to facilitate tightening of the pinion gear nut to the specified torque (P12-25 of the base shop manual),
3) Be sure that the side of the special tool (i.eside with the stamped tool number) is facing to the opposite side from the pinion gear, and be sure that the tool of the pinion gear nut side is not set on the nut
VERTICAL SHAFT
GAUGE ADAPTER, I00 mm
121 PINION GEAR SIDE
Tighten the bolts by hands while pushing both tools toward the pinion gear sideDo not confuse the pinion gear side and the taper roller bearing side of the special toolDo not score and scratch the opposite side {measurement side) from the side where the tool number is stampedDo not tighten the bolts with toolThere must be no wobbling in the special toolIt must securely set on the pinion gear