Honda BF115A, BF130A Outboard Motors Shop Manual., Page 296Get this manual
HONDA BF115A-130A
REVERSE BEVEL GEAR BACKLASH
LCD and XCD types: Reverse bevel gear backlash adjustment must be made before adjusting the forward bevel gear backlash (P12-41)Common LD, XD, LCD and XCD types Reverse bevel gear backlash adjustment should be made after adjusting the forward bevel gear backlash (P12-41)Be sure that the special tools of the water pump mounting part and the vertical shaft are attached the vertical shaftIf they are removed, install the special tools following the steps through and the step 10 on page 12-41 and 42LD and XD types only Hold the propeller shaft with the special tool securely as shownTighten the 18 castle nut to the specified torqueTORQUE: Nm (0.1 kgf-m, 0.7 Ibf-ft) Ifit is hard set the split pin by tightening the castle nut the specified torque, tighten the nut additionally until the split pin can be Turn the vertical shaft to 10 times clockwiseTOOL: Propeller shaft holder Attach the tip of the dial gauge perpendicularly on the line of "2" of the special tool (backlash indicator tool)Turn the vertical shaft lightly right or left and record the dial gauge readingMeasure the backlash at the four points (by turning the vertical shaft 90') in the same mannerNOTE: