YAMAHA Complaints

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

2009 YAMAHA ZUMA 125 SCOOTER. FUEL PUMP FAILED AND SCOOTER WOULD NOT START. FAILURE OF THE FUEL PUMP APPEARS TO BE RELATED TO OUTSIDE TEMP. *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

SCOOTER WOULD NOT START AFTER 10 MINUTES OF RUNNING. I WOULD TURN THE ENGINE OFF AND COULD NOT RESTART UNTIL ENGINE HAD COOLED. *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

SITTING ON MOTORCYCLE, STARTED MOTOR, BACKED OUT OF GARAGE, PUT KICKSTAND UP AND MOTOR DIED. TRIED TO RESTART, BUT NOTHING WORKED; NO LIGHTS, NO HORN, NO INFORMATION SHOWING IN DISPLAY, NO FLASHER LIGHTS OR TURN SIGNALS. THIS IS THE FIRST TIME THIS INCIDENT HAS OCCURRED. TOOK TO LOCAL MOTORCYCLE DEALER AND AFTER HAVING TO LOOK ON A MOTORCYCLE FORUM ON THE INTERNET FOUND OUT PROBLEM WAS IN ONE OF EIGHT DIFFERENT GROUND SWITCHES LOCATED IN THE WIRING HARNESS. HE CLEANED SWITCH (CANNOT REPLACE INDIVIDUAL GROUNDING SWITCHES) AND GOT BIKE RUNNING AGAIN. MECHANIC STATED IT MAY OCCUR AGAIN AT ANY TIME AND COULD OCCUR WHILE RIDING. ACCORDING TO THE PARTICULAR MOTORCYCLE FORUM, SOME PEOPLE HAVE HAD THIS OCCUR WHILE RIDING AT FREEWAY SPEEDS. IT SEEMS TO BE COMMON TO MY PARTICULAR MAKE AND MODEL OF MOTORCYCLE. THIS COULD BE A VERY SERIOUS SAFETY ISSUE; THE MANUFACTURER SEEMS TO KNOW ABOUT THE ISSUE BUT HAS DONE NOTHING PUBLICLY TO ADDRESS THE PROBLEM OR ADVISE OWNERS THE PROBLEM EXISTS. *TR

OUTSIDE TEMPERATURE: 95+F, SUNNY, CLEAR NO PASSENGER, JUST DRIVER JUST PULLED INTO THE DRIVEWAY AFTER AN 60 - 90 MINUTE RIDE. SHUTDOWN MOTORCYCLE. RAW GASOLINE, LEAKING FROM THE CARBURETOR, DRIPPING ONTO THE ENGINE AND EXHAUST PIPES. AMOUNT OF GAS EXPELLED ONTO THE ENGINE, I WOULD ESTIMATE 2OZ - 4OZ. FUEL DELIVERY SYSTEM WAS STOCK AT THAT TIME. NO MODIFICATIONS MADE PRIOR TO THE INCIDENT. READ ON INTERNET FORUMS FOR THIS MOTORCYCLE, THIS IS A COMMON ISSUE FOR THIS BRAND OF MOTORCYCLE. DESCRIPTION OF FUEL DELIVERY SYSTEM. FROM TANK - THROUGH FUEL FILTER - TO ELECTRONIC FUEL PUMP - TO CARBURETOR INLET. FUEL LINE IS RUBBER 5/16" FUEL HOSE FROM TANK - TO FILTER - TO PUMP. METAL FUEL LINE FROM FUEL PUMP TO CARBURETOR. METAL FUEL LINE WAS WRAPPED IN 2,000 DEG F HEAT PROTECTIVE TAPE. THIS METAL FUEL LINE RUNS IN BETWEEN THE CYLINDER HEADS OF THE V-TWIN ENGINE FROM THE FUEL PUMP TO THE CARBURETOR. THIS FUEL SYSTEM IS UNDER CONSTANT PRESSURE FROM THE FUEL PUMP TO THE CARBURETOR. ENGINE HEAT EXPANDS THE COOLER FUEL IN THE FUEL LINES AND CARBURETOR, RESULTING IN FUEL EXPANSION AND BOIL. AS A RESULT, RAW FUEL EXPANDS AND SEEKS ITS WAY OUT OF THE CARBURETOR AND ONTO THE ENGINE AND EXHAUST PIPES. THERE IS NO PRESSURE RELIEF EXCEPT FORCING THE FUEL OUT OF CARBURETOR. OWNER CORRECTIONS / MODIFICATIONS TO PREVENT FUTURE INCIDENTS OF RAW GASOLINE POURING ONTO THE HOT ENGINE AND EXHAUST PIPES. 1. RELOCATE FUEL PUMP TO RIGHT SIDE AWAY FROM ENGINE, REMOVE AND DISCARD METAL FUEL LINE. UTILIZE 5/16 RUBBER FUEL HOSE, WIRE SPRING HOSE PROTECTION, DOUBLE INSULATE WITH 2,000K HEAT PROTECTIVE TAPE. THIS NEW LINE RUNS IN BETWEEN THE CYLINDER HEADS TO THE CARBURETOR. 2. ALTERNATE GRAVITY FED FUEL SYSTEM FIX, INCREASE SIZE OF FLOAT BOWL NEEDLE AND SEAT. REPLACE FUEL PETCOCK WITH HIGH FLOW PETCOCK. VENT STOCK GAS CAP. REMOVE FUEL PUMP. *TR

MY YAMAHA ZUMA 125 HAS INTERMITTENT STALLING PROBLEMS. MY LAST INCIDENT WAS THIS WEEK, WHERE MY ZUMA STALLED ON THE ROAD, I WAS ABLE TO RIDE IT THE REST OF THE WAY TO WORK, BUT THEN WOULD NOT START AGAIN. I GOOGLED PROBLEMS WITH YAMAHA ZUMA 125'S AND THERE ARE DOZENS OF COMPLAINTS EXACTLY LIKE MINE. THE CONSENSUS IS THAT THEY HAVE A DEFECTIVE FUEL PUMP. I CALLED YAMAH, THEY SAID THEY HAD NOT HEARD OF THE PROBLEM....CLEARLY LUDICROUS BECAUSE IT IS ALL OVER THE NET. EVENTUALLY, SOMEONE'S VEHICLE WILL STALL IN AN INTERSECTION AND WILL BE KILLED BY THIS DEFECT. INCREDIBLY DANGEROUS. YAMAHA HAS DECLINED TO FIX THE VEHICLE BECAUSE IT IS OUT OF WARRANTY BY 8 MONTHS (THE VEHICLE HAS ONLY 470 MILES ON IT!) I BOUGHT THE VEHICLE SECOND HAND FOR WHAT I THOUGHT WAS A BARGAIN... (FOOLISH ME) OBVIOUSLY THEY KNEW THERE WAS A SERIOUS FLAW. I HAD THE YAMAHA DEALERSHIP CALL AND CONFIRM THAT THERE WAS A PROBLEM. THEY CALLED, AND YES, OF COURSE THEY KNEW THERE WAS A PROBLEM!!!! SO YAMAHA LIED TO ME. YAMAHA SAID , THAT WITH THE HEAT WAVE THEY ARE GETTING MORE AND MORE COMPLAINTS FROM UP NORTH. I NEED THIS VEHICLE FOR MY DAILY TRANSPORTATION. THIS IS NOT A TOY FOR ME. I HAVE NO OTHER VEHICLE! THIS IS MY TRANSPORTATION! I BELIEVE THAT IF IT IS THE FUEL PUMP THEY SHOULD ANNOUNCE A RECALL. IN THE MEANTIME I WILL HAVE TO PAY $350+ TO FIX THEIR DANGEROUS MANUFACTURERS DEFECT. *TR

BACK FIRING AND WANTING TO DIE,ON COLD STARTS. YAMAHA DID THE VALVE JOB UNDER WARRANTY,AND TOLD ME IT WAS FROM IMPROPER OIL CHANGE. NOW ITS DOING IT AGAIN AND THE YAMAHA SHOP HAS BEEN DOING THE OIL CHANGE, 1 YEAR LATER AND 3000 MILES. YAMAHA ALSO HAS PROBLEMS WITH STARTER CLUTCHES MAKING A CRACK WHEN TURNING OFF THE BIKE.(THAT SOUNDS LIKE ITS GOING TO FLY OUT OF THE BIKE,OH YEA AND IT DON'T START WHEN THIS HAPPENS). *TR

MY 2005 YAMAHA ROADSTAR WAS LEAKING FUEL FROM THE CARBURETOR WHEN RESTARTING AFTER FUELING UP DURING A LONG ROADTRIP. THE HOT FUEL WAS POURING OUT OF THE CARB AND ONTO MY HOT MUFFLERS. AFRAID THE BIKE WOULD CATCH ON FIRE, I HAD TO WAIT FOR IT TO COOL DOWN TO RESTART WHICH IT DID. I TOOK THE BIKE TO HONDA/YAMAHA OF SAVANNAH WHERE THEY CLEANED THE CARB, REPLACED THE FUEL FILTER AND CLEANED OUT THE WHOLE GAS TANK. THE TECH STATED THERE MIGHT HAVE BEEN DEBRIS IN THE FUEL SYSTEM LEAVING THE NEEDLE VALVE IN THE CARB UNSEATED AND ALLOWING FUEL TO PASS THROUGH AND LEAK OUT. THE TECH TOOK IT FOR A 5 MINUTE TEST RIDE AND THERE WAS NO LEAK AFTER RESTARTING. I DROVE ABOUT 200 HIGHWAY MILES AND REFUELED. WHEN I TRIED TO START THE BIKE, FUEL AGAIN POURED OUT OF THE CARB AND ONTO MY HOT EXHAUST. I LET THE BIKE COOL AND HAD A MECHANIC AT THE STATION LOOK AT THE FUEL FILTER AND CARB NO DEBRIS. I HELPED HIM PULL THE TANK AND WE CHECKED FOR DEBRIS. THERE WAS NO TRASH IN THE FUEL. THE PROBLEM CONTINUES ONLY DURING RESTARTING A HOT ENGINE. I'M CONCERNED ABOUT MY SAFETY AND WOULD LIKE YAMAHA TO LOOK INTO THIS AS THIS IS A COMMONLY REPORTED PROBLEM. *TR