Hi All. I just purchased a near immaculate tri hull with a '76 Merc 650 on it. I'm picking it up on the weekend. I've not heard this run but the owner tells me it likely needs a carb kit, which I expected. However, is there anything I should be aware of with this 3 cylinder outboard? Any know issues or concerns? It seems I remember something back in the day that one of the cylinders on these triple cylinders use to burn out..Any truth to this? Any help is would be much appreciated.