I have a 1998 200 johnson.It won't idle.I've cleaned the carbs and adjusted the float levels , the needle valves look like new but it still has gas coming into the carbs so much I think thats why it won't idle.I've had the carbs off 3 times and can't find anything wrong,and was thinking the floats are sinking and not working .When I squeeze the fuel bulb it just stays soft and dumps gas into the carbs.