Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 130Get this manual
3STARTER CASE B aREMOVAL
1) Remove the following parts:engine cover (P5-1)- left engine under cover (P5-2)- right engine under cover (P5-31,recoil starter (P7-2)
2) Pull out the connectors and wires from the clamp on the
starter case B
3) Pull off the breather tube from the clamp on the starter case and remove itDisconnect the breather tube from the cylinder head cover4) Remove the starter case with the drain tube attached