I WAS AT A STOPLIGHT WHEN THE VEHICLE NEXT TO ME TOLD ME THAT MY BIKE WAS ON FIRE. I WAS UNAWARE PRIOR TO THE DRIVER OF THE VEHICLE NEXT TO ME TELLING ME. I COULD NOT DIRECTLY SEE THE FLAME WHILE UPRIGHT ON THE BIKE, BUT I WAS ABLE TO LEAN OVER TO MY LEFT SIDE TO SEE A FLAME UNDERNEATH THE GAS TANK. I PULLED OVER IMMEDIATELY BUT UNFORTUNATELY COULD NOT PUT THE FLAME OUT AS IT WAS NOT REACHABLE BY THE MEANS THAT I HAD AT THE TIME. THE FLAME WAS COMING FROM THE LEFT SIDE OF THE BIKE DIRECTLY UNDER THE GAS TANK. IT WAS MORE ON THE INTERIOR THAN ON THE EXTERIOR SO I COULD NOT REACH THE FLAME TO PUT IT OUT SO I CALLED THE FIRE DEPARTMENT TO PUT THE FIRE OUT. BY THE TIME THEY ARRIVED THE BIKE WAS ESSENTIALLY TOTALED BUT THEY WERE ABLE TO PUT THE FIRE OUT.