Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 106Get this manual
dINSPECTION Float Level Height
Place the carburetor in the position shown and measure the distance between the float top and carburetor body when the float just contacts the seat without compressing the valve spring
Standard float height
13.5 (0.53 in)
If the height is out of specification, adjust the float height by bending the float mounting tab carefully
FloatfFloat ValveIFloat Valve Seat
1) Check the float for crack or damageReplace if neces-