Caution: Before performing a fuel tank leak test, place a Class B dry powder fire extinguisher nearby. Before removing the fuel tank to check for leaks, make sure that the fuel lines or hoses are not the cause of the leak. After removal, make sure that fuel does not leak past the O-rings. Failure to do so may result in personal injury.
1. Drain the fuel from the tank.
2. Remove the fuel tank.
3. Plug the fuel pressure hose and the vent valve hoses on the fuel tank.
4. Plug the filler neck opening.
5. Connect a section of hose to the breather hose fitting on the fuel tank and secure with a clamp.
6. Immerse the fuel tank in water or apply a soap solution to the outside of the tank.
7. Create air pressure in the breather hose of 7-15 kPa.
8. If the fuel tank is not sealed, air bubbles will begin to emerge from the leak.
Note: If there are any leaks, replace the fuel tank with a new one.
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