Super Cub - Hangar 9

Step 6. Slide the vent tube into one of the two remaining holesin the stopper from the tank (small cap) side.Step 9. Tighten the 3mm screw carefully; do not over tighten.This allows the rubber stopper to form a seal by being slightlycompressed, thus sealing the fuel tank opening.Important: Be sure to differentiate between the vent andthe fuel pick-up tube. Once the tank is mounted inside thefuselage, it will be difficult to tell the tubes apart.Step 7. Locate the short piece of fuel tubing and the fuel tankclunk. Install the clunk onto one end of the tubing and the otherend onto the fuel tank pickup tube (straight tube) in the stopper.Caution: Use the appropriate fuel tubing for the type ofengine you are using.Step 10. Cut two lengths of fuel line (gas or glow to matchengine choice) 18 inches long. Attach the tubing to the fueltanks supply and vent tubes. Use masking tape marked with an"S" (Supply) and "V" (Vent) for identification on the ends of thefuel lines.Step 8. Carefully insert the assembly into the fuel tank. Note theposition of the vent tube. It must be at the top portion of the fueltank to function properly. Also, it may be necessary to shortenthe length of the fuel pickup tubing to make sure the clunk doesnot rub against the back of the fuel tank. The clunk should movefreely in all directions.37