OPERATOR VESSEL 1 TOPPED OFF FUEL TANK AT ARROWHEAD YACHT CLUB MARINA.  OPERATOR WENT TO RESTART ENGINE RESULTING IN AN EXPLOSION AND FIRE.  BOTH OPERATOR AND PASSENGER EXITED THE VESSEL ONTO THE MARINA DOCK AFTER THEY SAW FLAMES COMING FROM THE CENTER OF THE VESSEL.  AN EMPLOYEE OF THE MARINA TOWED THE VESSEL AWAY FROM THE FUEL PUMPS AND TIED VESSEL 1 TO A GRDA DIRECTIONAL TRAFFIC BUOY IN THE MIDDLE OF DUCK CREEK.  LAKEMONT FIRE DEPT RESPONDED TO THE SCENE AND EXTINGUISHED THE FIRE.  THE OPERATOR OF VESSEL 1 STATED HE DID NOT HAvE THE BLOWER ON AT THE TIME OF IGNITION.  AREA OF THE ACCIDENT WAS APPROX 500 FT E OF ARROWHEAD YACHT CLUB MARINA AND APPROX 1200 FT N OF ARROWHEAD POINT AND APPROX 2000 FT NW OF CHEROKEE YACHT CLUB MARINA.
KETCHUM                       