Lose of power
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Lose of power
I have a 1990 454 Mercrusier. I start losing RPM's, power and speed after running hard for about 5 to 8 minutes. Once I reduce my speed to an idle for about 2 minutes and can get back up to max speed until this cycle (lose of power) starts over again . Any ideas why this is happening? Could it be that I have a 165F thermostat and not the 143F thermostat
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