RedactedNarrative: Operator #1, was sitting on the personal watercraft and attempted to start it. Fumes ignited and the PWC exploded, throwing Operator #1 in the air. He landed back in the water. He was wearing a life jacket and was able to get to a dock, where first aid was administered. He was then transported to the hospital by ambulance with back pain. The fire department was able to get the fire put out and pulled the hull back to shore. The PWC was a Total Loss. Alcohol was not a factor.