Thinking about buying a used 1997 50HP 4 stroke. Seller says it just needs carb work, water pump, and new seals in the lower unit. 800 hours. Asking price is $1500 and includes controls. Seller says it will run but for some reason it is not in position to start right now, not on a stand or something(smells fishy). If this thing is laying on its side, what needs to be done before starting. If I can't a least turn it over and check compression I don't think I'll bother. I am going to check it out because it sounds like a good price, but what are more specific things to look for. Thanks, in advance for your help.