Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 111Get this manual
7) Install new O-ring on the drain screw and install the drain screw in the float chamber8) Install new O-ring (float chamber seal) on the float chamber
121 FLOAT
9) Install the float chamber on the carburetor body and tighten the four washer screws securely
SCREW (41
10) Install the throttle stop screw and spring11) Install new O-ring on the SE thermal valve and install the SE thermal valve with the setting plate and loosely install the setting screw12) Set the SE thermal valve as shown noting the direction and tighten the set screw securely