Guys, I have a 95 E300 and I just changed all the plastic fuel lines, pre-heater and gasket, and both fuel filters. Now I can't seem to get fuel going to her to start. I see through the plastic fuel lines that some fuel is coming through along with air (bubbles) I was wondering on my fuel pump there was a manual primer pump or button I can push to feed the injector pump fuel?

Thanks - Toby