I have a 1986 Force/Clrysler 50 hp outborad I've replace the water pump,coils,plugs,wires,thus far.While running across the lake at wot it sudden went to half speed and started running hot.I stopped and let cool off. Then i let it run at idle it run fine and it pump water.At wot it would run at half speed and would run hot again also quit pumping water. Pull back to idle it would go back to pumping water.I also swap gas tank to see if it was in the gas still run at half speed
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