I have a 1995 115 jhonson faststrike that sat for over two years . After removing all old fuel I could from tank and draining carb bowls , I also installed a new battery. I had the engine running , but when I went to the lake the engine would not fire the first time. Later at home I have tried starting engine. The only way it will fire is to spray starting fluid or fuel into the carbarators.Any ideas as to what the problem might be. bcoonie.