Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 101Get this manual
HONDA BFSOASEA
8) Align the cutouts the lower rubber motor mount and the lower motor mount center housing for installation, and tighten the self locking nut securely
LOWER RUBBER OTOR MOUNT [I) LOWER MOUNT HOUSING
TORQUE: N-m (5.5 kg-m, 39.8 ft-lb)