vacuum in Gas line 23 Scepter 1985, w 1997 225

[Runco]

My 1985 Sceptre w/144 gal fuel had similar problem. Found tiny little screen filters at the top of the pickup tube. They would get plugged with junk from the tank and starve the motor for gas. Took them out, put a Racor fuel filter and changed it every 50 hours took care of the problem. Replaced the tank this past spring with a new one because of age and could not get rid of all the stuff in the tank. Good luck