I have a hurricane deck boat. It had been sitting for a long time. I am restoring it. When I try to start it out of the water it eventually starts but will die after a minute or so. In the water it wont start at all. I installed new plugs. It seems I am getting gas but I'm not sure. I checked the points and they look good, I get a small spark when cranking. Any help would be great I am new to the OMC I/O.