SPARK PLUG BLEW OUT AFTER STOPPING FOR RED LIGHT. SHUT OFF ENGINE, POPPED THE HOOD AND THERE WAS A SMALL FIRE UNDER THE HOOD. I WAS ABLE TO PUT THE FIRE OUT QUICKLY WITH MY SHIRT. COP WAS DAMAGED, TRIED TO RE-INSTALL PLUG, BUT THE THREADS IN THE HEAD WERE STRIPPED. I WAS ABLE TO JUST SNUG THE PLUG DOWN ENOUGH TO GET ME HOME. ABOUT .5 MI. I WAS STOPPED IN THE MIDDLE OF THE ROAD WITH TRAFFIC GOING AROUND ME BOTH DIRECTIONS. *TR