96 XCR 440 chassis W/500 motor unknown year... Motor wont idle back down, If the motor is warm and i start it, it sits at 900 RPM but as soon as i touch the throttle it stays at 2800 RPM and wont come back down unless i kill and restart. May be unrelated but I filled up the other day and lost 1/4 tank overnight. I noticed gas coming out of the bowl overflow so i know i have a bad float. But is it related to it not idling?? I have not messed with the carbs because it does idle untill the throttle is touched. I've messed with the cables looking to see if they are sticking/bound up/loose/etc but have come up short. What is the deal??