Top Flite TOPA0705 - Manual (Page 24)

24
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8. Assemble the fuel tank stopper assembly with
the fuel tubes as shown. The easiest way is to fi rst
solder a fuel line barb (not included, we used Du-Bro
Fuel Barb DUBQ0670) onto
one end of all three tubes.
Insert the tubes into the stopper with the metal plates,
and then solder a barb onto the other end of the two
short tubes. Bend the vent tube and connect the pickup
and fueling/defueling lines (not included) to the short
tubes. Connect the clunks to the Tygon Fuel lines (not
included) and secure the lines to the clunk and brass
tubing with the included small tie straps.
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9. Install the fuel tank stopper assembly in the fuel
tank. Check that the clunks move around freely in the
fuel tank. Tighten the fuel tank stopper screw.
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10. Install fuel lines onto the brass tubes from the
fuel tank. To route the fuel lines as will be shown here
you will need to use a 24" [610mm] length of tubing
on the fi ll and vent line and a 6" [152mm] length on
the carburetor line.
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11. Install the fuel tank into the opening in the
fuselage as shown. Feed the lines through the fuselage
up to the fi rewall. Make sure when you insert the tank
that the vent line is at the top of the tank.
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12. Route the carburetor line through the fi rewall.
Trim it as needed and attach it to the carburetor. Drill
two 1/4" [6mm] holes though the bottom of the fi rewall
box in the bottom of the box as shown. Pass the vent
and carburetor lines through the holes.
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13. Drill two more holes for each line as shown
in the picture. Push the lines through the holes. This
installation allows both of the lines to be located under
the fuselage. Install the aluminum fuel plug into the
fuel/defuel line.