E-bay. The evinrudes are much easier and straight forward to work on than the old mercuries. When you buy the parts but a new impeller to without in the water pump. They go bad even sitting.
I have all Mercury's on the vintage boats, the old mercury motors looked better than the Evinrudes. I have a 1960 Mercury 400, and a 1957 Mercury mark 55. One you get them rebuilt they are bullet proof but you have to do routine mainatance and take good care of the fuel.
