Why would a 1986 50 HP Force run hot at half+ throttle?

Mech.

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Jun 24, 2015
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In reference to this old topic in the following link, http://forums.iboats.com/forum/engi...46185-50hp-force-high-speed-water-not-pumping, I seem to be having about the same problem and was hoping for some guidance on this issue...Thanks everyone in advance.:)

I have a 1986 Force/Chrysler 50hp outboard. I've replaced the water pump, Coils, plugs, wires thus far. While Running across the lake at half throttle, the engine started to run hot. I stopped and let it cool off, ran it again at idle, it ran fine. At WOT it would run only at half speed and it ran hot again. Any advice of where to look/begin would be most helpful. Thanks again.:)
 
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