Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 162Get this manual
dINSTALLATION 1) Install new oil pump O-ring on the oil pump body2) Install the oil pump assembly by aligning the groove of the oil pump shaft with the pin on the camshaft as shown
3) Tighten the three 35 mm flange bolts to the specified torqueTORQUE: 11 N-m (1.1 kgfsm, lbf-ft)
141CAMSHAFT
PUMP SHAFT
3CYLINDER HEAD DISASSEMBLY
Before removing the cylinder head, check the camshaft axial play (P10-10)1) Remove the three 35 mm flange bolts, oil pump and O-ring2) Loosen the valve adjusting lock nuts and valve adjusting screws fully