Welcome to the seadoo forum Hemisport. Yes, there is a internal filter in each carb. I would clean both carbs and re-assemble. be careful not to tear the diaphragms. If you do you Will have to purchase a rebuild kit. Keep us posted on you progress. Also if the pwc has gray fuel lines replace all of them with the black fuel line type. The clamps too if they are corroded. I use stainless steel ones.
Thanks kustomkarl, I'v visited this fourm for sometime now and have read about the gray fuel lines ( thank you). i changed the filter on the mag carb, but on the pto carb i suppose it's on the side where the fuel line hooks up