I have a good deal of experience with antiques (Johnson/Sea King/Tecumseh) and have helped a friend revive a 1980 Merc 40. I found a boat the other day, a 1988 Bayliner 18 with an 88 Force 125. I have inspected the hull and trailer and am confindent that I understand their condition. I looked at the outboard and am unfamiliar with a Force product. The owner (2nd in the life of the boat) states it last ran 3 years ago and at that time he was able to get it to run but stated it wouldn't run full power. (to his best recollection). Visually, the outboard and boat appear to have been used little and well maintained, but in the last 3 years have become very dirty. Inside the cowl of the o/b, there is no residual gas or oil, and virtually no rust anywhere. It is CLEAN, except for 3 years of cobwebs. prop looks good, skeg is in good condition. The whole thing has been under a tarp under a tree. This deal pretty much hinges on the condition of the o/b, but I'm not for sure where to start evaluating this o/b that I know I wud not be able to get running before I buy. How does the shifting mechanism work? so I can check the viability of the lower unit. Should I hook up a battery and try to turn it over and check compressions? Would those compressions be valid? Should I check lower unit oil level and condition? I expect I would have to replace the impeller (it has one, right?) and rebuild the carbs and then look for other problems. Any thoughts?