Good day gang. I have been wrestling with my Nissan 40C it still is not running right. I have a question about the fuel tank and hose. Are all tanks and hoses standard? <br /><br />Second question. When my fuel hose is disconnected from the motor and I squeeze the bulb it gets hard but 30 seconds later it is soft again. Is this normal? There is no gas leaking on any of the fittings that I can see. Is it the fitting on the tank? I'd like to know if I need to replace it before I get a new one. Thanks for any type of help.<br /><br />Gregg