Rebuilt fuel pumps, new fuel, idle is rough as when I let off it is dying after about 6-8- seconds. I put in a water seperator. Are pumps (2) not strong enough for using this seperator? New fuel filter also. This has BEEN a reoccuring problem. Any ideas Also carbs gone through last year by a guy who said it may not totally fix the same problem. It did briefly and here we are again. 90 all the way around also on the compression.