I have a new to me 1994 29.5 which was just launched for the season. It has a Yanmar 2GM20F engine. I was able to start the engine and it ran fine. My question is, are there an fuel shut off valves between the fuel tank and the engine that I need to make sure are open and exactly where are they located? I honestly don't see any and I'm afraid I'll motor away from the dock and the engine will die. Thanks.