If your boat has a portable tank:
1. Remove fuel fill cap from tank fitting, insert fuel supply
nozzle and begin pumping fuel.
2. Stop filling tank before fuel overflows. Allow space at
top of tank for thermal expansion. Fuel pumped from
underground tanks is cooler than outside air. Gasoline
expands as it warms up and can easily overflow the
tank.
IMPORTANT: Gas will shoot out of vent if the tank is
overfilled. Fuel spilled on the boat can damage the finish.
3. When you have finished fueling, replace fuel fill cap. If
necessary, wash off any fuel spilled around fuel fill
area. Properly dispose of rags used to wipe off fuel
spillage.
4. Carefully carry tank aboard and make fuel line
connections. Check for fuel fumes or fuel line leakage.
Investigate and correct any indication of fumes or fuel
leakage before starting engine.
NOTICE
Servicing of fuel system components can be accomplished
through the inspection plates in the deck of the pontoon in
many cases. Sometimes it will require removal of the motor
mount or the center pontoon, in both cases they can be
unbolted and removed from the boat frame.
https://www.boat-manuals.com/lund/