I have a 1985 force, 85 horse. While at idle on the lake I have a good steady flow of water coming from the outlet holes, but at a higher speed you can not see or fill water coming from these holes. It hasnt over heated as I have tried by running it for long periods but when I come to a stop the water is only warm. I have a working sensor that has never sounded. I have replaced the impellar and there seems to be no blockage. Does the water exit some where else.