Okay. I ran the line on my propane grill side burner. I have flame up to the inlet for the cooking unit, but no flames out all the little holes. I removed the part and ran a pipe cleaner through it. Nothing stopping it up. There is a rotating part on the tube, that I have completely closed, fully opened, and partially opened. No flames. Rest of the burners are working fine. I was told this needs some me air with the fuel to burn right. Suggestion? I have a flat griddle made for this that I would live to cook with. Am placing the griddle on my main grill grates, but burning more fuel than necessary to fry an egg.