I suggested a way for the backyard mechanic to check for leaks on the gas tank and hoses to it. No one responded; so, I don't know if it worked. Here's the method: Get a smoke bomb from a novelty store (etc.). Run a tube from the smoke bomb. Place the tube into the gas tank filler neck. Duct tape over the tank filler pipe opening and around the tube to seal it. Release the smoke into the gas tank. Observe the gas tank and hoses for any smoke that may be coming out.
Inform us of results, if any.