Honda BF15D BF20D Outboard Motors Shop Manual., Page 181Get this manual
5Install the timing belt driven pulley on the camshaft by aligning the key of the pulley with the groove of the camshaft6) Apply oil to the threads and flange surface of the pulley boltTighten the bolt to the specified torque TORQUE: 16 Nem (1.6 kgf-m, 12 Ibf eft)
21 rlMING BELT )RIVEN WLLEY
PULLEY BOLT
Apply engine oil to the thread and flange surface
7) Make sure that the valve adjusters and lock nuts are
loose firmlyTurn the timing belt driven pulley clockwiseuntil the#1 timing mark on the timing belt driven pulley aligns with the "IT mark on the cylinder head
TIMING MARK