185 190hp Running on

brad56

New Member
Mar 15, 2009
23
Australia
Boat Info
2004 185 Sport
Engines
4.3l Mercruiser Alfa 1
Has anyone had the problem of the engine running on after you turn the key off on a Carby 190hp V6? Everything seems normal with the engine temp and tune ect. I was reading about adjusting the idle mixtures on the 3.0L engines has anyone done it with the V6?:huh:
 
Don't turn it off immediately after running it. Let it idle for about a minute then turn it off. Mine does the same thing if it's shutdown too soon.
 
Try lowering your idle speed slightly, that has been the biggest help for me.
 
I used to think timing too, but how can that be a factor if the timing affects ignition only and the ignition is off. I would think that the timing advance would be irrelevant with the ignition shut off. Anyone else have a thought on this?
 

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