[WardL]

All reputable retail pump dispensers have 10 micron filters on gasoline. A 100 micron filter is just getting the chunks out of the fuel coming from the tank. Why do you think you need two filters for a carburetor system? All the holes in a carb are way bigger than 100 micron. Filters are not really required in carburetor systems. They are more important in fuel injection systems, but that may be debatable. For your peace of mind, put in a 100 micron filter between the tank and the carb. It is so big at 100 micron it will rarely foul up and cause a problem. Has anyone EVER had a problem and after changing just the filter the problems went away? Hello? Anyone?