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The engine will sputter in the high RPM?s and have a lot of trouble making power up top. The plugs are black and a little wet. It runs fine at idle and mid range.
How can i adjust the jetting on this 4 stroke Mercury with 4 carburetors?
Will adjusting the mixture screws in or out affect the higher RPM performance of my 50 hp 4 stroke outboard???
Or are these settings just for the idle???
The motor seems to struggle at about 3300 rpm and I can't get the WOT that I should.
Many thanks
Jim
I want to check if the timing is set right on my 2002 50 hp 4 stroke Merc. I suspect the timing belt may be off by a notch or the system is not set correctly. Do I need a timing light or can I check things without?
Many thanks
2002 Mercury 50 hp 4 stroke with 4 carburetors, stutters , bogs, loses power surge at 3300 rpm. The motor runs fine at lower rpm. Starts easily. The gas is fresh, filters clean and fuel pump is fine. New plugs installed and after a 3 hour run they appear blackened and a little damp. I think it...
2002 Mercury 50 hp 4 stroke with 4 carburetors, stutters , bogs, loses power surge at 3300 rpm. The motor runs fine at lower rpm. Starts easily. The gas is fresh, filters clean and fuel pump is fine. New plugs installed and after a 3 hour run they appear blackened and a little damp. I think it...
