Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 157Get this manual
8) Loosen the timing belt driven pulley mounting bolt9) Turn the crankshaft clockwise by turning the flywheel clockwise (in the arrow marked direction) until the "" #1 timing mark on the timing belt driven pulley aligns mark on the with the "IT" cylinder head CAUTION: Don't turn the flywheel counterclockwise or the water pump may be damaged
TIMING BELT DRIVEN PULLEY
151 #1 CYLINDER TIMING MARK
10) Remove the timing belt from the timing belt driven pulley taking care not to damage the timing belt11) Remove the pulley bolt and timing belt driven pulley