Hi guys, hoping someone could give me some insight. I purchased a 2006 280 with the single 496...360hrs. Boat tested great where purchased. Tried to start it yesterday and the starter engaged but wouldn’t turn over and made a loud smacking noise. Tried one more time and the same. Starter now just spins. Oil is clean, batteries are new. I’m just sick that I might have a major and expensive problem. Freshwater boat. Any advice would be greatly appreciated.