It’s a 2005 mercury mariner 25 hp 2 stroke with an electric start. It has spark and it does not have a man overboard switch. I’m thinking it’s possibly running too rich. The plugs are soaked every time I start it up and has black on them. I’ve had this boat for 10 years plus and never had any...
My boat motor ran a few months ago just fine but now it doesn’t want to start. I cleaned the carburetor and that seemed to do the trick for a day then after that noting. I noticed that the spark plugs are soaked every time I try to start it, primed or not. Is it getting too much gas?
