Re: 2000 Johnson 9.9
M80 don't know what operating engine temp should be but had the same problem with a Force 50hp. Turned out the thermostats were not opening when they should or as large as they should could not tell which. They were just older and had a little corrosion. Replaced them and all was well, engine ran noticeably cooler
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Willy
1986 V20 Old School
1992 V20 1992 150 Yamaha
1997 HydraSport 2250 Vector
2009 17' G3 Outfitter "G Spot"
http://www.youtube.com/watch?v=TDebw...eature=related
"I won't be wronged, I won't be insulted and I won't be laid on a hand on. I don't do these things to others and I require the same from them" JW
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