Honda BF40D Owner's Manual page 124

MAINTENANCE
3. Turn the hexagon part to
counterclockwise and separate the
strainer cup from the filter body.
4. Thoroughly clean the strainer cup
and fuel strainer.
If the fuel strainer is clogged,
replace it with a new one.
122
FILTER BODY
O-RINGS (Replace)
FUEL STRAINER
FLOAT (red ring)
STRAINER CUP
HEXAGON PART
5. Install the fuel strainer, O-rings and
float. Use new O-rings.
Re-assemble the filter body and the
strainer cup.
TIGHTENING TORQUE:
3.0 N·m (0.3 kgf·m, 2.2 lbf·ft)
Align the center of the two fuel tubes and
the arrow of the suspension strap rib
6. Install the suspension strap to the
fuel filter assembly as shown
above.
7. Reinstall the fuel filter assembly
and suspension strap in the original
position.