I tried new pressure line to be sure and still same issue. I would lean the LSN needle little by little with no change. I then leaned with big turns. I stopped leaning at about 4turns lean from flush. I tried to lean the HSN needle as well just to try. I leaned the HSN about 2 turns in from flush with now change to it staying running. I have not opened this engine at all other than changing the carb insert and loosening the HSN the adjust the fuel nipple to line ope with the way I routed my fuel line.