Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 92Get this manual
6GEAR CASEIANODEWATER SCREEN The anodes and water screens can be serviced with the gear case mounted on the outboard motor
111 mm SELF-LOCKING NUT
GEAR CASE
1101 WATER SCREEN (2)
131 ANODE (2)
171 O-RING (2)