2003 Mercury 200 2 Stroke carb running hot at idle. New impeller, new thermostats

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
37,826
When on the muffs with motor stopped the impeller itself BLOCKS the flow of water to the engine.
 

diver94

Petty Officer 2nd Class
Joined
Jun 7, 2010
Messages
191
When on the muffs with motor stopped the impeller itself BLOCKS the flow of water to the engine.
Yes, but that doesn't happens when the hose is connected to the flushing port/on top. Maybe the thermostats do stop the flow of water(because they stay closed under 143 degrees)
 
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