2009 Yamaha YW125

FUEL PUMP INTERMITTENT FAILURE TO FUNCTION IN HOT WEATHER. THIS BECAME A SAFETY HAZARD AS IT BECAME WORSE. THE SCOOTER HAD TO BE TOWED TO THE DEALER TWICE BEFORE THE DEALER WAS ABLE TO REPLICATE THE FAILURE. THE DEALER REPLACED THE FUEL PUMP AND THAT SEEMS TO HAVE CORRECTED THE PROBLEM SO FAR. THE FUEL PUMP FAILED AT 756 MILES ON THE ODOMETER. *TR

THE VEHICLE WILL START UP MOST OF THE TIME AFTER BEING PARKED FOR EXTENDED PERIODS OF TIME, BUT AS THE VEHICLE IS BEING USED REGULARLY DURING THE HOTTEST PART OF THE DAY IT WOULD STALL WHILE AT A LOW SPEED OR IDLE. THE PROBLEM GETS WORSE OVER TIME, AND EVENTUALLY IT WILL STALL WHILE AT FULL THROTTLE AND WILL NOT RESTART AFTER SEVERAL ATTEMPTS. THE VEHICLE HAS STALLED ON ME ONCE WHILE ON A 45MPH STREET AND ONCE ON AN INTERSTATE HIGHWAY IN THE SLOW LANE WHILE AT GREATER THAN 55MPH. ON THE LATER OCCASION I WAS STRANDED ON THE SIDE OF THE HIGHWAY AND HAD TO PUSH THE VEHICLE ALONG THE SIDE OF THE ROAD BACK TO THE DEALERSHIP DURING THE NIGHT AFTER SEVERAL FAILED ATTEMPTS TO START IT UP. I HAVE ALSO HAD THE VEHICLE STALL IN THE MIDDLE OF A BUSY INTERSECTION DURING HEAVY TRAFFIC WHILE TAKING A LEFT HAND TURN. I HAD TO WALK THE VEHICLE TO THE SIDE OF THE ROAD TO PREVENT AN ACCIDENT. I HAVE SINCE TAKEN THE VEHICLE TO THE SERVICE SHOP FOR WARRANTY REPAIR ON MULTIPLE OCCASIONS TO SOLVE THIS PROBLEM. THEY HAVE REPLACED THE FUEL PUMP, THROTTLE BODY, BATTERY, ECU, AS WELL AS REGULAR MAINTENANCE TO TRY TO RESOLVE THIS PROBLEM. THE PROBLEM PERSISTS AS OF THIS COMPLAINT AS THE SERVICE SHOP HAS NOT SUCCESSFULLY REPAIRED THE VEHICLE. I DO NOT HAVE POSSESSION OF THE OLD PARTS THAT WERE REPLACED UNDER WARRANTY. THE VEHICLE IS A 2009 YAMAHA ZUMA 125 SCOOTER WITH APPROXIMATELY 6400MILES. *TR

VEHICLE'S ENGINE STALLS WHILE RIDING, OR AT IDLE, UNDER NORMAL OPERATING CONDITIONS. THIS OCCURS MOST OFTEN WHEN OUTSIDE AIR TEMPERATURE IS ABOVE 85 DEGREES FAHRENHEIT. THE FIRST TIME THE VEHICLE STALLED ( ON OR AROUND 5/15/2010)I WAS STOPPED AT AN INTERSECTION AND WAS ABLE TO RESTART THE VEHICLE IMMEDIATELY. ON OR AROUND 6/18/2010 THE VEHICLE STALLED AGAIN WHILE PULLING AWAY FROM A STOP AT A LEFT TURN SIGNAL. THE VEHICLE WOULD NOT RESTART AND I HAD TO PUSH IT ACROSS THE INTERSECTION TO AN ADJACENT PARKING LOT. I WAS ABLE TO RE-START THE VEHICLE AFTER LETTING IT SIT FOR APPROXIMATELY 5 MINUTES. THE THIRD TIME THE VEHICLE STALLED (ON OR AROUND 6/28/2010) I WAS PULLING AWAY FROM A STOP AT AN INTERSECTION OF A MAJOR HIGHWAY. THE VEHICLE WOULD NOT RE-START, AND I HAD TO PUSH IT ACROSS TWO LANES OF TRAFFIC TO REACH A SIDEWALK. AFTER WAITING APPROXIMATELY FIVE MINUTES THE SCOOTER WOULD NOT RESTART, SO I PROCEEDED TO PUSH IT THE 1/4 MILE TO MY HOME. AFTER PUSHING IT FOR THREE BLOCKS I ATTEMPTED TO RESTART IT, IT STARTED, IDLED POORLY, AND STALLED AGAIN WITHOUT MY HAVING APPLIED ANY THROTTLE. I TOOK THE VEHICLE TO MY LOCAL YAMAHA SERVICE CENTER THE FOLLOWING DAY. THEY RODE AND PERFORMED DIAGNOSTICS ON THE VEHICLE, DETERMINING, ON 7/22/2010, THAT THE FUEL PUMP WAS FAULTY AFTER HAVING THE VEHICLE STALL WHILE RIDING IN TRAFFIC ( THE VEHICLE HAS BEEN AT THAT FACILITY SINCE 6/29/2010, AND IS STILL IN THEIR POSSESSION) . I AM NOW AWAITING A NEW FUEL PUMP TO ARRIVE FROM YAMAHA. *TR

THIS IS REGARDING A 2009 YAMAHA ZUMA 125 SCOOTER. THERE HAS BEEN A WIDESPREAD ISSUE WITH THE FUEL PUMPS ON THESE BIKES AND MINE FINALLY BROKE DOWN THE OTHER DAY. THE ISSUE IS THAT IF THE OUTSIDE TEMPERATURE IS HOT ENOUGH IT CAUSES THE FUEL PUMP TO COMPLETELY FAIL. LUCKILY MINE STOPPED WORKING WITH THE BIKE STATIONARY, HOWEVER IT IS COMMON TO HAPPEN WHILE THE BIKE IS MOVING WHICH CAUSES A COMPLETELY DANGEROUS SITUATION. WHEN THE FUEL PUMP FAILS IT IMMEDIATELY CUTS FUEL PRESSURE AND THE MOTORCYCLE WILL TURN OFF IMMEDIATELY. THIS COULD CAUSE A CRASH IF IT WERE TO HAPPEN WHILE GOING AROUND A TURN. YAMAHA IS AWARE OF THIS PROBLEM, BUT HAS NOT ISSUED A RECALL AND DOES NOT CARE TO DO ANYTHING ABOUT IT. THIS IS ABSOLUTELY UNACCEPTABLE. *TR