I STARTED MY BIKE UP AT 8:00 AM ON A WARM MORNING IN MY GARAGE AS I ALWAYS DO, AND BACKED IT OUT WHILE IT WAS IDLING PERFECTLY. SUDDENLY SMOKE BEGAN TO RISE UP FROM THE LEFT FAIRING VENT. I SHUT THE ENGINE DOWN AND JUMPED OFF THE BIKE TO DETERMINE THE SOURCE OF THE SMOKE. TO MY SURPRISE, THE ENGINE BAY WAS ENGULFED IN FLAMES. I GRABBED MY GARDEN HOSE AND MANAGED TO PUT OUT THE FIRE. THE WHOLE EVENT LASTED ABOUT A MINUTE OR TWO. THE DAMAGE WAS DONE, I REMOVED THE FAIRING COVERS TO EXAMINE THE EXTENT OF THE DAMAGE. IT APPEARED TO BE A FUEL RAIL FAILURE. I FOUND WHAT LOOKS LIKE A "T" SHAPED FRACTURE NEAR THE HIGH PRESSURE INPUT SIDE OF THE FUEL RAIL. THE DAMAGE WAS MOSTLY CONFINED TO THIS HIGH PRESSURE SIDE OF THE FUEL RAIL AREA. I SEARCHED THE BMW LUXURY TOURING SITE TO SEE IF THERE MAY BE A PATTERN OF THESE "K" MODEL BIKES CATCHING ON FIRE. TO MY SURPRISE THERE WERE MANY, DESCRIBING MY EXPERIENCE EXACTLY AS MINE HAD OCCURRED. THE PLASTIC GAS TANK IS MOUNTED DIRECTLY ABOVE THE AREA THAT WAS ON FIRE. I HAD A 1/4 TANK OF GAS. THIS COULD HAVE BECOME EXPLOSIVE. THIS COULD HAVE HAPPENED DURING MY RIDE THAT MORNING. I HAVE BEEN RIDING BIKES MOST OF MY LIFE. I'M 62 YEARS OLD AND I HAVE NEVER EXPERIENCED A BIKE FIRE ON ANY BIKE THAT I HAVE OWNED. WHAT STRUCK ME IN THE OTHER ACCOUNTS OF OTHER OWNERS OF THESE BIKES WAS THE EXACTNESS OF THE DESCRIPTION AND THAT THE FIRE WAS SPONTANEOUS.