2001-2014 Honda BF/BFP8D, BF/BFP9.9D Outboards Shop Manual, Page 180Get this manual
SFBO-SF9.90 8) Remove the two 36 mm flange bolts and remove the thermostat cover, cover gasket and thermostat
9) Remove the six 22 mm flange bolts and remove the following- fuse holder bracket- water jacket coverjacket cover a-ring- flush valve and flush valve spring10) Remove the 20 mm screw and anode Replace the anode with new one, if it is excessively corroded