Honda BF115A, BF130A Outboard Motors Shop Manual., Page 198Get this manual
HONDA 12) Remove the cylinder head assembly, cylinder head gasket and the two 14 20 mm dowel pins[41 OIL PATH ORIFICE REMOVAL: Remove the iail path orifice by inserting mm bolt (pitch: l.0mm)inthe orificeINSTALLATION: Blow air through the oil passage before installation141-2 mm BOLT (PITCH1.0 mm) CYLINDER HEAD GASKET