I have had the carbs done on this because of an idling problem. Well thats fixed, but now my boat only seems like it's on half throttle when it's really wide open throttle. It does not have an engine miss or anything like that it just doesn't want to go. It starts great, and idles fine, it even fast idles fine. Does this sound like a fuel filter ? If so where is it located on the motor? I followed the lines from the tank to inside the case and nothing is pinched. I am pretty sure the ball stays tight all the time also. Any help will be greatly appreciated. P.S. The Mercury dealer was supposed to have checked the electrical stuff (power packs) out and said it was ok. Thanks again, Josh