West Marine, Brewerton boat yard, Rogers marine A Bay.
https://www.mercurymarine.com/en/us/find-a-dealer/?latitude=43.16103&longitude=-77.6109219&q=rochester%2Cny
That is the needle valve that you epoxied over. Is the needle valve and spring present? Skip the SeaFoam fix. Buy a manual. Rebuild the carburetor and adjust it properly.