Pull the hose off of the carb where it connects coming down from the gas tank. Use a small set of needle nose and pull the little filter out of the little T. Spray it down with some carbs cleaner and reinsert it, paying attention to the orientation as it only goes back in one way. It has a slight V shape to it as does the T connection hole.
It is really tight in there and is easier to get to if you can just pull the carbs first. With a Freak it's really easy to yank the carbs off. No need to disconnect cables, just the fuel line and the TPS.