Hello everyone. I have a 2011 8HP Mercury Four Stroke. I am the third owner so I don't know what might have been done to this motor before I got it. I would like to find out if it has the original carburetor. I have not removed it, but from what I can see there are no identifying markings on it, except for a circle with the letters TK inside the circle, near the bottom. How can I tell if it is the factory original carburetor? Any help would be appreciated, thanks.