What causes a CARB to leak gas in the tank?
It is also possible that something is interfering with the seal between the needle valve and seat. This could be foreign matter such as dirt or rust which has accumulated in the tank. The fix for this particular problem would be to clean as much residue from the tank as possible, then disassemble the carb, cleaning both the needle valve and seat.
What’s the best way to replace a fuel line?
Push the larger vent line about an inch into the tank. Push the smaller fuel supply line into the tank far enough so that the fuel filter will lay on the bottom of the tank. Tip: If the lines are tight, apply a small amount of oil to the outside of the line. PHOTO: Cut the end of the new fuel lines at an angle.
Where does the fuel go after it leaves the tank?
This is the sequence: Fuel leaves the tank via the fuel line (the one with the filter) and enters the carburetor, flowing up through the screen filter at point 1. Fuel flows down passageway at point 2. Fuel flows back up at point 3. The reed valve prevents fuel flowing back. Fuel flows down at point 4 and into the compartment 5.
How to clean gummed up carburetor fuel systems?
Follow steps 5 and 6 with spark plugs removed. When added to gasoline carburetor fuel systems, Sea Foam Motor Treatment works to help:
It is also possible that something is interfering with the seal between the needle valve and seat. This could be foreign matter such as dirt or rust which has accumulated in the tank. The fix for this particular problem would be to clean as much residue from the tank as possible, then disassemble the carb, cleaning both the needle valve and seat.
How does gas flow from the CARB to the float bowl?
You only use the Pri to prime the carb, to let some gas into the bowl. When you want to start the engine you switch it to on. Now lets say that it is hooked up right, fuel flows into the float bowl from the gas tank. After the fuel reaches a certain level, it elevates the float and closes the needle valve though which the fuel flows.
This is the sequence: Fuel leaves the tank via the fuel line (the one with the filter) and enters the carburetor, flowing up through the screen filter at point 1. Fuel flows down passageway at point 2. Fuel flows back up at point 3. The reed valve prevents fuel flowing back. Fuel flows down at point 4 and into the compartment 5.
What is the part number for the fuelcock Assembly?
The part number for that is 13278-02340 and it is readily available. The fuelcock assembly should not be supplying fuel in all positions. It is possible that the membrane/gasket on the inside is leaking by.