Hello, I found a 1973 Evinrude 65HP locally and have not gone to look at it yet. Is there any past known problem with this model? Is this a model that I should stay away from? Are the parts easily available? The owner says he has used it for the last 3 seasons and never had a problem. When I go and look at it I will do a compression test. What should be some of the other things to look for? Thanks 