Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 142Get this manual
6WATER SCREEN
DISASSEMBLYIASSEMBLY
121 WATER BOTTOM TUBE
111 RUBBER SET PLATE
131 WATER BOTTOM SCREEN
[I31 mm SELF-LOCKING
ASSEMBLY1
Check for clogging
1 mm WASHER