Hello to all. I have just come into possession of a 95 Dolphin that will not turn over. I am thinking that the main battery is the culprit. I charged it for an hour and attempted to start the rv but it just won?t turn over. The RV has been sitting for awhile and the battery is about 2.5 years old. Will pick up a new battery tomorrow. If that is not it, is there a fuel shutoff switch somewhere ? Battery 850 Cca 150 amp reserve