I have a engine that is about to make me lose my testimony. My ASP 108 will run then quit. I have chased the LSN all over the place. Problem is, I don't know if when I screw it in if that leans it out or not. Can't find a manual on it. I have replaced all the plumbing and did a pressure check under water and can't see any bubbles. Any suggestions. Normally I am pretty good at adjusting engines. But this puppy is getting to me.