Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 192Get this manual
4CRANKSHAFTCYLINDER BLOCK aDISASSEMBLY
1) Remove the engine (Section 8) and remove the following:flywheel and timing belt drive pulley {P9-2 and 10)- silencer and carburetor (P.6-21- fuel pump and fuel filter (P6-17)- cylinder head (P10-2)2) Turn the crankshaft until the piston is at top dead center
3) Remove the eight 28 mm flange bolts
Loosen the bolts in crisscross pattern in steps4) Insert screwdriver or equivalent tool into the concave