Honda BF75, BF100, BF8A Outboard Motors Shop Manual, Page 65Get this manual
DISASSEMBLY AND SERVICE 9Remove four mm bolts (21) and separate extension case (22) from the oil case (23)
10.Remove three mm bolts (24) and exhaust pipe seal (25)
11 .Remove eight mm bolts (26) and take the power head out of oil case (27)NOTE: One bolt is concealed as shownCoat bolts with grease for corrosion protection