I go out and drive my cruiser and its fine. then if I let it sit for 10 min. (say run in a store or something) and start it , it wont idle and dies. If I keep it running and drive it a block or so then shut it off and wait about 5 min . it starts right up and idles fine and runs fine. I was wondering if I still need a pressure regulator since I have a return line back to the tank and figured that would take care of excessive pressure. (AND I DID SEARH POSER BUT COULDNT FIND A ANSWER ABOUT THE RETURN LINE )