RedactedNarrative: Operator was changing filters on his 200hp evinrude outboard engine when he had some fuel spillage on the deck and work area that he was wiping up with oil absorbent.  He smelled fumes and felt burning.  He was wearing an inflatable life jacket and stumbled and fell over the side of the vessel trying to put the flames out.  He could see flames and smoke coming from the engine as he swam to shore.  He suffered injury. Vessel was a total loss.