I am having a problem with my 1999 Force overheating... I had been running the boat all summer in the ocean with no issues. Late in the year we fired it up before heading out and the overheat sensor went off. I noticed that no water was circulating out with the ears on.... I assumed the impeller needed replaced... I picked one up and changed it out... The old one looked fine and same problem... I noticed while i had the lower unit off that if I try to circulate water with the hose the water doesn't seem to flow thru as it should... There seems to be something plugged but after hours of looking I can't find anything. I am hoping someone else may have had a similar problem and may have some advice. Any advice would be appreciated. Thanks