2011 YAMAHA ZUMA Fuelpropulsion System Problems

ZUMA 125 STALLED AT A RED LIGHT IN A LEFT TURN LANE WITH THREE LANES ON EITHER SIDE OF ME, PUTTING ME IN A DANGEROUS POSITION. AT THE TIME I HAD ALTERNATE TRANSPORTATION AND DID NOT TRY TO RIDE IT AGAIN TILL THE FALL. ALL THROUGH WINTER AND SPRING I WENT WITHOUT PROBLEMS, BUT AGAIN THIS MAY IT STARTED TO ACT UP. IT WOULD NOT START IF PARKED IN THE SUN, AND WOULD OFTEN STALL IF IDLING AT A LIGHT, AFTER WHICH IT WOULD NOT START (OFTEN LEAVING ME IN THE MIDDLE OF TRAFFIC). I TOOK IT TO A LOCAL REPAIR SHOP BUT THEY COULD NOT RECREATE THIS PROBLEM TO DIAGNOSE IT, SO THEY JUST PREFORMED SOME ROUTINE MAINTENANCE. TOOK IT TO MY LOCAL DEALER FOR A SECOND OPINION, THEY DIAGNOSED THE PROBLEM AS A FUEL PUMP ISSUE. YAMAHA WAS CONTACTED BUT DENIED THE CLAIM BECAUSE OF MILEAGE. AT THIS...