YAMAHA Complaints

I'VE HAD TO REPLACE THE FUEL PUMP ASSEMBLY DUE TO A CRACK IN THE PLASTIC BODY ALLOWING THE ESCAPE OF PRESSURIZED FUEL BACK INTO THE AUXILIARY FUEL TANK RESULTING IN A TENDENCY FOR THE ENGINE TO STALL WHEN COMING TO A STOP. THIS TENDS TO HAPPEN ON BUSY CITY STREETS, AT STOP SIGNS AND RED LIGHTS, AND IN STOP AND GO TRAFFIC ON THE HIGHWAY.

TL* THE CONTACT OWNS A 2003 YAMAHA YZF600. WHILE DRIVING 50 MPH, THE VEHICLE BEGAN TO SEIZE WITHOUT WARNING WHILE THE GEAR WAS SWITCHING. THE CONTACT STATED THAT THE SHIFT LEVER BECAME INOPERABLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE SHIFT FORK AND GEARS FAILED AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 19,000.

3RD GEAR FAILING. GRINDING. ENTIRE ENGINE HAS TO BE REMOVED TO FIX . THIS IS A WELL KNOW PROBLEM AND A RECALL MUST BE DONE. 2600.00 REPAIR.

FINAL DRIVE FAILURE (DIFFERENTIAL) WHILE MOVING ON A STRAIGHT COUNTRY ROAD, LOCKING UP BRIEFLY AT 38,000 MILES ON THE ODOMETER WITH REGULAR MAINTENANCE. AND PINION BEARINGS FAILED AT 30,000 MILES. THIS APPEARS TO BE A VERY COMMON PROBLEM WITH 650 V-STARS, SOME KNOWN TO FAIL UNDER 15,000 MILES OFTEN CAUSING REAR END LOCK UP AT HIGH SPEEDS.

THE THROTTLE POSITION SENSOR WENT OUT, FUNNY HOW YAMAHA ONLY RECALLED 2004 MODELS MADE BETWEEN 2002-2005 WHICH DOESN'T MAKE SENSE. THIS IS UNACCEPTABLE

EXTREME JERKING AND STALLING OF THE ENGINE AT HWY SPEEDS IN A CONGESTED AREA CAUSING EXTREME WORRY ABOUT BEING HIT FROM BEHIND OR BEING TOSSED OFF AND TRASHED ON I-40 CAUSING SERIOUS INJURY OR DEATH. DURING THE MECHANICAL INSPECTION IT WAS DISCOVERED THAT THE FUEL PUMP'S PLASTIC HOUSING HAS A FLAW, THERE IS A COLD MOLD LINE IN THE PRESSURE VESSEL. THERE IS A LONG AREA OF THE HOUSING THAT IS VISIBLY FLAWED; AN EXCESSIVELY THIN WALL SECTION THAT IS A RESULT OF A MOLDING PROCESSES INABILITY TO MAINTAIN PROPER MOLD FLOW AT THE PROPER TEMP TO ASSURE A COMPLETELY SOLID PRESSURE VESSEL. THIS FLAW HAS ALLOWED THE FUEL PUMP HOUSING TO RUPTURE CAUSING RAPID CHANGES IN FUEL PRESSURE BEING SUPPLIED TO THE FUEL INJECTORS. THIS UNPREDICTABLE JERKING AND STALLING OF THE ENGINE IS A DANGER TO ALL WHO MAY HAVE THIS UNPREDICTABLE FLAW IN THEIR SYSTEM.

3RD GEAR, LOUD WHINING SOUNDS COMING FROM TRANSMISSION AREA WHILE IN 3RD GEAR BETWEEN 30 AND 40 MPH. YAMAHA HAS CHANGED THEIR 3RD GEAR DESIGN AND CHANGED THEIR REPLACEMENT PART NUMBER, YET HAS NOT RECALLED AND REPAIRED OUR BIKES THAT HAVE THE OLD DESIGN. IS THIS A COVER UP BY THE MANUFACTURER OFF A WELL KNOWN CONDITION THAT CAN CAUSE THE TRANSMISSION TO LOCK UP AND THE RIDER LOOSING CONTROL CAUSING SERIOUS INJURY AND OR DEATH? PLEASE DON'T LET THIS HAPPEN TO ME AND MY FAMILY.

MY 2006 YAMAHA V STAR STARTED MAKING NOISE ON DECELERATION. IT APPEARS TO BE THE MIDDLE SHAFT DRIVE NUT HAS COME LOOSE OR SHEARED OFF. I WAS DRIVING ON A CITY STREET, HAD JUST EXITED THE CREEPY.

WHEN MAKING U-TURNS, LEFT OR RIGHT TURNS AT INTERSECTIONS IN TRAFFIC OR JUST MATCHING SPEED TO THE TRAFFIC FLOW, THERE IS AN EXTENDED LAG IN THROTTLE RESPONSE AFTER BACKING OFF FOR A SECOND OR TWO THEN RE-ACCELERATING. IN TURNS, A MOTORCYCLE'S SPEED AND RADIUS OF TURN MUST BE MATCHED OR THE BIKE FALLS OVER IF THE THROTTLE DOESN'T RESPOND. IN STRAIGHT TRAFFIC, IF A VEHICLE IN FRONT SLOWS FOR A TURN OR WHATEVER REASON, THEN CLEARS THE ROAD OR SPEEDS UP, THERE IS THE CHANCE THE VEHICLE BEHIND WILL REAR- END ME IF I CAN'T ACCELERATE. YAMAHA KNOWS THIS PROBLEM EXISTS IN THIS MODEL MOTORCYCLE, THE DEALER THAT SOLD ME THE BIKE KNOWS THIS PROBLEM EXISTS IN THIS MODEL MOTORCYCLE, A DEALER IN PANAMA CITY, FLORIDA KNOWS THIS PROBLEM EXISTS BUT NOBODY WILL FIX IT AND IT IS DEFINITELY A HAZARD. THE BIKE MUST BE IN MOTION ON CITY STREETS OR HIGHWAYS GOING STRAIGHT OR TURNING. I CANNOT DATE WHEN IT HAPPENS BECAUSE IT HAS BEEN HAPPENING AND I HAVE BEEN BITCHING SINCE I BOUGHT IT NEW OVER THREE YEARS AGO. THE DEALER TELLS ME THAT THEY CAN PUT A DEVICE ON IT THAT WILL GREATLY IMPROVE THE RESPONSE BUT MAY NOT FIX IT COMPLETELY FOR $650.00 OR SO BUT I DON'T BELIEVE I SHOULD HAVE TO PAY TO HAVE A MANUFACTURING FAULT FIXED.

TL* THE CONTACT OWNS A 2012 YAMAHA YW50SBL MOTOR SCOOTER. WHILE DRIVING AT VARIOUS SPEEDS, THE SCOOTER WOULD SUDDENLY SHUT OFF. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FUEL PUMP WAS FAULTY. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 5,000.