2004 Yamaha FZ6

YAMAHA 2004 FZ6 BIKE RUNS GOOD FOR A WHILE, AND ALL THE SUDDEN THE ENGINE LOSES 90 % OF ITS POWER, I HAVE TO TURN THE KEY OFF, THEN BACK ON TO REGAIN POWER WHILE IN TRAFFIC, ONE TIME THIS HAPPEN I GAVE IT TO MUCH GAS TO GET OUT OF TRAFFIC ,AND I FLIPPED THE BIKE OVER IN THE MIDDLE OF THE STREET. IT WAS MY LUCKY DAY NOBODY RAN OVER ME. LOOKING AT THIS WEB SITE , THERE IS A LOT OF OTHER FZ6 RIDERS WITH THE SAME PROBLEM, I HAVE ASKED 4 YAMAHA DEALERS IF ANYONE ELSE IS HAVING THIS PROBLEM AND THEY ALL SAID NO? WELL THEY SURE DO BY LOOKING ON THIS WEB,I HAVE THE EXACT SAME PROBLEMS AS THOUGH OTHERS ON THIS SITE, AND A FACTORY RECALL IS NEEDED! SOMEONE GOING TO DIE IF NOT ALREADY THAT WE KNOW OF BECAUSE OF THIS PROBLEM. *NM

AT 9M MILES, MY 2004 YAMAHA FZ6 BEGAN TO EXHIBIT THE FOLLOWING: 1) AFTER APPROXIMATELY 30 MINUTES OF OPERATION, ERRATIC AND PROLONGED PERIODS OF ROUGH IDLE AT 500 RPMS INSTEAD OF THE NORMAL 1300 RPMS 2) MOTOR WOULD STALL DURING GEAR CHANGES, EVEN AT HIGHWAY SPEEDS 3) DURING THESE TIMES, THE SMELL OF GASOLINE WAS NOTICEABLE. CHANGING THE SPARK PLUGS SEEMED TO FIX THE PROBLEM TEMPORARILY, BUT THEY SOON REAPPEARED. AT 12M MILES, THE BIKE WAS TAKEN TO THE YAMAHA DEALER TO BE FIXED BUT THEY COULD FIND NOTHING WRONG WITH IT. I WENT NEXT TO AN INDEPENDENT MOTORCYCLE MECHANIC WHO ALSO COULD FIND NOTHING WRONG. HE SUGGESTED THAT IT WAS PROBABLY AN ELECTRICAL PROBLEM AND COULD BE EXPENSIVE TO FIX AND I SHOULD TAKE IT TO A DIFFERENT DEALER. HE ALSO QUESTIONED IF THE "CHECK-ENGINE" LIGHT HAD COME ON WHICH WOULD HAVE REGISTERED SPECIFIC TROUBLE CODES, BUT I TOLD HIM THAT THEY HAD NOT. AT 12800 MILES, WHILE PULLING ONTO THE ROADWAY, THE BIKE STALLED UNEXPECTEDLY IN A TURN AT LOW SPEED, LOCKED THE BACK TIRE AND WENT DOWN. I SUSTAINED MINOR INJURIES, AND THE BIKE LOST A MIRROR, FOOT PEG, FRONT FAIRING, AND GENERALLY GOT BUMMED UP. SINCE THEN, I HAVE FOUND NUMEROUS REPORTS OF "THROTTLE POSITIONING SENSOR" DEFECTS THAT HAVE CREATED SIMILAR PROBLEMS WITH THIS MAKE AND MODEL OF MOTORCYCLE. AND YET, THE DEALERS SEEM TO KNOW NOTHING ABOUT IT! INSTALLING A NEW TPS MAY OR MAY NOT FIX THE PROBLEM. BUT FOR NOW I'M STUCK WITH A BIKE THAT I CAN'T TRUST, HAS LITTLE RESALE OR TRADE-IN VALUE, AND PROBABLY ISN'T SAFE TO RIDE. AFTER READING THE NUMEROUS AND SIMILAR SOUNDING COMPLAINTS, THIS MAY WELL BE A MANUFACTURING DEFECT THAT SHOULD RESULT IN A RECALL. *NM

THIS COMPLAINT IS IN REGARDS TO THE 2004 YAMAHA FZ6 THROTTLE POSITION SENSOR. AFTER THE MOTORCYCLE WARMS UP (APPROXIMATELY 50 MILES OF RIDING), IT WILL STALL OUT AND/OR SPUTTER WHEN THE CLUTCH IS ENGAGED AND/OR SHIFTED INTO NEUTRAL. LAST JULY IT STALLED OUT IN THE MIDDLE OF A RIGHT HAND TURN AROUND A RED LIGHT, RESULTING IN THE BACK TIRE LOOSING TRACTION AND CAUSING A CRASH. I WAS MINIMALLY INJURED, BUT THE BIKE SUFFERED SOME EXTERIOR DAMAGE. AFTER SOME RESEARCH I HAVE FOUND THAT THERE IS A PROBLEM WITH THE THROTTLE POSITION SENSOR. THIS PART WAS FIXED UNDER WARRANTY, BUT SEEMS TO BE AN ISSUE WITH MOST OWNERS OF THE 2004-05 FZ6.*JB

BIKE STALLS WHEN CLUTCH IS PULLED IN. RPM'S DROP TO ZERO. WAS ALMOST RUN OVER BY TRAFFIC BEHIND ME WHEN ENGINE STALLS. INJURED MYSELF (FOOT/ANKLE) WHEN TRYING TO PUSH THE BIKE OFF THE ROAD (SO I WOULDN'T BE RUN OVER). I'VE BEEN TOLD BY MANY FZ6 RIDERS THAT MANY OF THE FZ6 BIKES HAVE DEFECTIVE THROTTLE POSITIONING SENSORS (TPS) AND THAT YAMAHA HAS NOT RECOGNIZED THE PROBLEM. I BELIEVE IT TO BE A VERY SERIOUS SAFETY ISSUE. SOONER OR LATER, SOMEONE IS GOING TO GET RUN OVER BECAUSE OF THIS DEFECTIVE SENSOR. *NM

2004 YAMAHA FZ6 5K+ MILES. WHEN CRUISING AND KEEPING THE ACCELERATOR CONSTANT, ONE EXPERIENCES SUDDEN CHANGES IN ENGINE-TO-TRANSMISSION POWER FEED: THE BIKE SUDDENLY STARTS TO ACCELERATE OR SLOW DOWN. ONE MUST COMPENSATE CONSTATNLY FOR THAT ERRATIC ENGINE BEHAVIOR, WHICH TAKES AWAY FROM PAYING ATTENTION TO THE ROAD. IF DOWNSHIFTING, UPSHIFTING OR CLUTCH DISENGAGEMENT IS PERFORMED DURING THE ENGINE FALTERING, THE RESULT IS A STALLED OUT ENGINE UNLESS SHIFTING IS PERFORMED VERY QUICKLY. STALLING OUT WHILE DOWNSHIFTING FOR A FULL STOP AT AN INTERSECTION GETS DICEY GIVEN THE AMOUNT OF OIL/WATER USUALLY FOUND AT STOP LINES AND THEIR APPROACHES. THIS PROBLEM TENDS TO APPEAR AFTER ABOUT 20-30 MINUTES OF ENGINE OPERATION AT ALL SPEEDS, TEMPERATURES OF ENGINE OPRATION. IT CLUTCH IS DISENGAGED, THE ENGINE IDELS DOWN TO 400-500 RMP (INSTEAD OF THE USUSAL 11-12K) AND INVARIABLY STALLS. STARTING THE BIKE RIGHT BACK DOES NOT ALLEVIATE THE SITUATION. THE ONLY REMEDY I WAS ABLE TO FIND WAS TO TURN THE IGNITION OF, TURN IT BACK ON (EVEN AFTER 2 SECONDS) AND START EH BIKE AGAIN. IDLING RMPS COME BACK TO NORMAL AND THE BIKE RIDES FINE AFTER THAT. TURNED BIKE INTO DEALERSHIP, REPORTING THE ABOVE SYMPTOMS ALONG WITH REPORTS OF THROTTLE POSITION SENSOR PROBLEMS REPORTED BY OTHER FZ6 RIDERS. DEALER COULD NOT REPLICATE THE PROBLEM AND SIMPLY REPLACED IOL/GAS FILTERS, AS WELL AS OIL. UPON RECEIVING THE BIKE BACK FROM THE DEALERSHIP, OF COURSE THE PROBLEM CAME BACK.