1985 Winnebago Chieftain. Generator starts using starting fluid and runs for a few seconds fine. Checked Fuel line and nothing is in it : ) Fuel pump is making normal noise and vibration. Is there a switch somewhere or a valve that I need to turn on. It takes fuel from the same tank as the rig and I have fuel (1/4 tank only). Does the RV have priority and once it drops below a certain point, stops feeding the generator? Any input would be appreciated mucho.