Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 200Get this manual
17) Set the side cover gasket on the crankcase side cover, and install them on the crankcaseTighten the 22 mm flange bolts securely18) Reinstall the removed parts: -timing belt drive pulley (P9-1 1)charge coil and flywheel (P9-81- cylinder head (P10-20)- recoil starter (P7-9)- fuel pump and fuel filter (P6-18)-carburetor and silencer (P6-13) 1 1SIDE COVER GASKET 1