2001-2014 Honda BF/BFP8D, BF/BFP9.9D Outboards Shop Manual, Page 120Get this manual
BFBO-BFS.SO INLETOUTLET VALVE INSTALLATION
1) Install the inlet valve (has the pin) at the side marked with" mark on the priming bulb2) Install the outlet valve and the valve seat at the other side Do not confuse the inlet valve and the outlet valve Install the priming bulb with the" mark toward the motor side