I have a 1982 20ft Grady White with a 1982 175hp Johnson 25 inch shaft that is original to the boat and has never been rebuilt. I have owned the boat for a year and the guy I bought it from said there was water in one of the cylinders and the compression was low in that cylinder. It usally takes about 10 minutes to her cranked up. I think I am choking and priming correctly. I am using Johnson Oil as recommended. I have two questions 1. Is there anything that I can do to make starting more reliable? 2. How long do these engines run before they need a major overhaul?? I do not want to spend any more money on this old engine. One more question, a friend has a 1994 200hp Suzuki Fuel Injected engine with 200 hours he wants $3000 for it. I do not know much about Suzuki. Should I have any reservations about buying this?? Sorry so many question. Thanks