Honda BF115A, BF130A Outboard Motors Shop Manual., Page 64Get this manual
HONDA BFI15A.I 30A
2) Move the remote control lever to the "N" (Neutral) position
3) Release the breather tube and the control cable from the clamps
Remove the four 20 mm flange bolts and the two 22
mm flange boltsDisengage the locking tabs of the timing belt upper cover from the timing belt lower cover and remove the timing belt upper cover