2004 YAMAHA FZ6 Problems & Recalls

Front drive shaft, chain sprocket ‘Nut/lock washer’ has came loose and fell off on the highway. Could have locked the chain around the wheel and cause a major crash, also could have severely damaged the engine casing. It damaged the rear swing arm and a piece piece near the stater. I replaced th...

Front drive shaft, chain sprocket ‘Nut/lock washer’ has came loose and fell off on the highway. Could have locked the chain around the wheel and cause a major crash, also could have severely damaged the engine casing. It damaged the rear swing arm and a piece piece near the stater. I replaced th...

Front drive shaft, chain sprocket ‘Nut/lock washer’ has came loose and fell off on the highway. Could have locked the chain around the wheel and cause a major crash, also could have severely damaged the engine casing. It damaged the rear swing arm and a piece piece near the stater. I replaced th...

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...

Mileage: 3,000

MOTORCYCLE SHUTS OFF AFTER REDUCING THROTTLE DURING DECELERATION AND DURING SHIFTING. MANY RIDERS OF THE SAME MODEL MOTORCYCLE HAVE REPORTED THE SAME PROBLEM. THIS IS DANGEROUS BECAUSE THE BIKE IS W/O POWER AND SOMETIMES DURING DOWNSHIFTING THE REAR TIRE LOSES TRACTION AND CAUSES THE BIKE TO SLIDE S...

Mileage: 300

(1) NO UNUSUAL EVENTS. (2) THROTTLE POSITION SENSOR FAILED CAUSING POOR GAS MILEAGE, STALLS, AND HESITATION. (3) REPLACED TPS AT A COST OF $215. *NM

Mileage: 8,000

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 O...

Mileage: 12,800

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 AROUN...

Mileage: 8,000

VEHICLE: 2004 YAMAHA FZ6 MOTORCYCLE, PURCHASE NEW 12/93. INTERMITTENTLY, THE ENGINE SURGES, CUTS OUT, LUGS, STALLS/QUITS AT VARYING TIMES AND SPEEDS/RIDING SITUATIONS. STOPPING THE BIKE, TURNING IGNITION OFF AND ON TEMPORARILY CORRECTS PROBLEM, BUT PROBLEM ALWAYS RECURS. DIFFERENT WEATHER TEMPER...

Mileage: 19,840

THE MOTORCYCLE HAD PROGRESSIVELY WORSE STALLING AT STOP-LIGHTS AND STOP SIGNS. AT TIMES THE MOTORCYCLE WOULD STUTTER AND STALL WHEN TRYING TO INITIATE THE THROTTLE FROM A STOP, AND AT OTHER TIMES THE MOTORCYCLE WOULD RANDOMLY INCREASE SPEED WHILE CRUISING ON THE HIGHWAY. THE THROTTLE BECAME QUITE ...

Mileage: 14,000

MOTORCYCLE'S IDLE RPMS CHANGE ABRUPTLY, TO THE POINT OF STALLING WHEN AT SLOW SPEEDS. THIS ABRUPT CHANGE WAS THE SOURCE OF A REAR END COLLISION. THE BIKE HAD BEEN TAKEN IN PREVIOUSLY TO THE DEALERSHIP ON MULTIPLE OCCASIONS BUT NO CORRECTIVE MEASURES WHERE TAKEN, AS THE PROBLEM COULD NOT BE REPRODUCE...

Mileage: 4,834

MOTORCYCLE RANDOMLY WILL NOT IDLE AND STALLS BETWEEN SHIFTS. HAS HAPPENED 5 OR 6 TIMES. DEALER SAYS DESCRIBED SYMPTOMS CANNOT NOT BE DIAGNOSED WITHOUT FAULT CODES. FAULT CODES ARE NOT STORED UNLESS CERTAIN "IDIOTIC LIGHTS" COME ON DURING FAILURE. *NM

Mileage: 6,500

BIKE IDLE DROPS (600-850 RPM) WHEN CLUTCH PULLED IN CAUSING VEHICLE TO STALL AT RED LIGHTS, EXITING DRIVEWAYS ETC... POOR FUEL MILEAGE AND ROUGH IDLE. UPON CYCLING THE IGNITION KEY OFF AND ON, SYMPTOM WILL TEMPORARILY RECTIFY ITSELF ONLY TO RETURN LATER. I AM FEARFUL OF A REAR-END IMPACT FROM ANOTHE...

Mileage: 4,900

'94 FZ6 - 5,000 MILES. THE BIKE HAD A HARD TIME STARTING. NOW IT CAN BE RUNNING AT A STEADY 3000-4500 RPM ON THE HIGHWAY AND START TO STUMBLE OR CUTOUT. I'VE HAD TO PULL OVER AND CUT IT OFF AND RESTART IT TO GET IT TO STOP. IT HAPPENS WHENEVER IT WANTS, NO WARNING OR REASON. IT STALLED ONCE WHILE I ...

TROTTLE CHUNKY/DELAYED/ERRATIC, MAKING MOTORCYCLE DIFFICULT TO CONTROL IN CORNERS. STALLS AT STOPS, A DANGEROUS SITUATION IN CITY TRAFFIC. DOES NOT IDLE, I NEED TO KEEP THE THROTTLE SLIGHTLY ROLLED ON. RUNS ROUGH, SMELLS OF GAS, SEEMS TO MISS. PROBLEMS STARTED WITH THROTTLE DELAY AT 7000 MILES, STAL...

Mileage: 7,400

RIDING HOME FROM WORK ON A 2004 YAMAHA FZ6, WITH JUST OVER 5K MILES ON IT. THE BIKE BEGAN TO SURGE BY ITSELF AND WOULD EITHER GO TO A FULL OPEN THROTTLE (WITHOUT ANY USER INPUT) OR WOULD HOLD A CONSTANT RPM (REGARDLESS OF USER INPUT). THE FIRST SURGE WAS VERY VIOLENT (WHEELIE STYLE THROTTLE INPUT) A...

Mileage: 5,615

1. BIKE STARTED AND WARMED UP FINE. AFTER ABOUT AN HOUR OF RIDING BIKE WAS IDLING VERY LOW AT A STOP SIGN (800-900 RPM). POWER DELIVERY WAS CHOPPY FROM A STOP ALSO. AT THE NEXT STOP LIGHT THE BIKE STALLED, AND I NEEDED TO USE THE THROTTLE TO KEEP IT IDLING . I SHUT THE BIKE OFF AT SOME POINT, TURNED...

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 TH...

Mileage: 4,550

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 TH...

Mileage: 4,550

ENGINE RPM'S WOULD "STUMBLE" INCREASINGLY MORE FREQUENT, STALL AT IDLE. THROTTLE POSITION SENSOR DEFECTIVE AND NOT READILY IDENTIFIED AS DEFECTIVE BY AUTHORIZED DEALERSHIP. POOR THROTTLE RESPONSE/STALLING LED TO POOR CONTROL AT HIGHWAY SPEEDS, EXITING RAMPS, HARD CORNERING WHERE NEED FOR IMMEDIATE...

Mileage: 7,800

I HAVE A 2004 YAMAHA FZ-6 AND I BELIEVE THE THROTTLE POSITION SENSOR IS BAD. THE BIKE STALLS AND RUNS VERY ERRATICALLY AT LOW RPMS. I HAD TO PULL TO THE SIDE OF THE ROAD AND TURN THE KILL SWITCH AND KEY OFF TO RESET THE SYSTEM AND THEN IT STARTED AGAIN. IF THIS WERE TO HAPPEN IN A HIGH TRAFFIC AR...

Mileage: 12,050

I HAVE HAD ISSUES WITH MY YAMAHA FZ6. THE MANUAL ADVISES TO USE 87 OCTANE FUEL. I HAVE BEEN USING 87 UNTIL THE BIKE STARTED TO IDLE AT VERY VERY LOW INTERVALS. CAUSING LOSS OF POWER WHEN DRIVING, OR STOPPED. NORMAL IDLE IS 1320 RPM. IDLE WILL DROP BETWEEN 600-800 RPM WHEN STOPPED CAUSING THE BIK...

Mileage: 4,000

IN SEPTEMBER OF 2004 AT APPROXIMATELY 5000 MILES, THE MOTORCYCLE BEGAN IDLING POORLY AND STALLING. HAD TO TURN OFF THE KEY AND THEN BACK ON BEFORE IT WOULD START AGAIN. YAMAHA REPLACED THE THROTTLE POSITION SENSOR AFTER BRINGING IT TO THEM TWICE WHICH CORRECTED THE PROBLEM. I HAVE ALMOST 13000 MILES...

Mileage: 5,000

THE MOTORCYCLE STALLED REPEATEDLY IN HIGHWAY TRAFFIC.

Mileage: 5,000

ENGINE HESITATION, MISSING AT HIGHWAY SPEEDS, ENGINE SHUTS OFF WITH NO THROTTLE. THIS IS A KNOWN ISSUE WITH YAMAHA AS TPS FAILURE ON THE FZ6.

Mileage: 11,300

I WAS RETURNING HOME TO PLANO, TX FROM A WEEKEND TRIP TO COLORADO. I WAS ABOUT AN HOUR AWAY FROM HOME, WHEN I STARTED TO EXPERIENCE ENGINE HESITATION WHENEVER I RELEASED AND REAPPLIED THE THROTTLE. THE NEXT DAY, THE HESITATION WAS GONE, BUT I NOTICED THAT MY FUEL MILEAGE HAD GONE WAY DOWN (FORMERLY ...

Mileage: 9,600

THROTTLE "JUMPS" UNEXPECTEDLY DURING NORMAL OPERATIONS OF THE MOTORCYCLE. WHEN TRAVELING SPEED WILL DECREASE AND THE ENGINE WILL "SPUTTER", THEN THE ENGINE WILL JUMP BACK TO SPEED CAUSING A JOLT FORWARD. SYMPOTMS BEST DESCRIBED AND THE FUEL BEING CUT OFF THEN ON AGAIN.

Mileage: 6,000

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 AT...

Mileage: 5,000

2004 YAMAHA FZ6 13K+ MILES. DURING A SUSTAINED CRUISE, WITH A SUSTAINED RPM BETWEEN 4K AND 5K RPM, THE ENGINE BEGAN FALTERING/BOGGING DOWN AND RUNNING VERY ROUGH. ACCOMPANYING THIS ISSUE, THERE IS A MARKED SENSE OF DECELERATION UNLESS MORE THROTTLE IS APPLIED TO COMPENSATE FOR THE THE LOSS OF POWER;...

Mileage: 13,799

TPS CAUSING STALLING AND ERRATIC IDLE. PROBLEM OCCURS MORE WHEN BIKE IS WARM, OFF, THEN RE-STARTED. HAVE ONLY HAD IT STALL ONCE WHILE RIDING. HAPPENS MORE OFTEN AS ABOVE. *AK

Mileage: 100

1. BIKE WAS BADLY HESITATING STARTING OFF IN 1ST GEAR FROM A STOP. 2. TURNING THE THROTTLE TO ACCELERATE WOULD SOMETIMES PITCH ME FORWARD ON THE START AS THE ENGINE HESITATED, THEN TURNING IT A BIT MORE WOULD ALMOST THROW ME OFF AS IT ACCELERATED. 3. ONE DEALERSHIP TRIED ADJUSTING THE THROTTLE POSI...

Mileage: 4,400

AT ABOUT 6200 MILES WHILE PULLING UP TO A LIGHT OF A STEADY RUN MY MOTORCYCLE WOULD DIE. RESTART IT, AND IT WOULD BE MISFIRE REAL BADLY AND DIE AGAIN. TAKE KEY OUT AND BACK IN IT WOULD FIRE UP JUST FINE, FOR THE TIME BEING. FIRST TIME THIS HAPPENED I WAS ABOUT TO TAKE A TURN, HAD THE CLUTCH IN D...

MY MOTORCYCLE WILL STALL AND/OR RUN ROUGH OCCASIONALLY, AND NOT IDLE WITHOUT ADDITIONAL THROTTLE INPUT. IF I TURN THE IGNITION OFF AND RESTART THE MOTORCYCLE IT WILL FIX THE PROBLEM FOR A PERIOD OF TIME. I AM VERY CONCERNED THAT THE MOTORCYCLE WILL ENCOUNTER THIS PROBLEM WHILE TURNING AND CAUSING ...

Mileage: 7,200

1) AT APPROXIMATELY 8000 MILES ON THE ODOMETER, MY YAMAHA FZ6 BEGAN EXHIBITING PERIODIC STALLING. WHEN UNDER NORMAL POWER, THE BIKE EXHIBITED A MODERATE LOSS OF POWER, WITH A COMPLETE ENGINE STALL ONCE THE CLUTCH WAS DISENGAGED (WHILE STOPPING IN TRAFFIC OR PARKING). THESE SYMPTOMS INCREASED IN F...

Mileage: 8,000

THROTTLE POSITION SENSOR ISSUE WELL DOCUMENTED ON HTTP://FORUMS.SPORTBIKES.NET/FORUMS...088#POST1774088 STALLING ON FREEWAY, COULD CAUSE ACCIDENT. HAS NOT BEEN FIXED BY YAMAHA.

Mileage: 8,950

IDLE SUDDENLY GETS ROUGH THEN ENGINE QUITS/STALLS AT RANDOM TIMES, MOST OFTEN AT LOW SPEED AFTER DOWNSHIFTING, BUT HAS HAPPENED AT HIGHWAY SPEEDS ON PARKWAY IN TRAFFIC. I'M INVOLVED WITH AN ONLINE USERS GROUP OF FZ6 OWNERS (ABOUT 100-150 IN THE GROUP) AND ABOUT 20 - 25 PEOPLE HAVE HAD TO GET THE...

Mileage: 2,000

1-AVERAGE USAGE, 2-MOTORCYCLES WOULD STALL SPORADICALLY, RPMS WOULD VARY CONSIDERABLY, A LOT OF HESITATION, VARIABLE IDLING, BAD GAS CONSUMPTION. A FAILURE OF THE MOTORCYCLE TO CEASE THROTTLE OPERATIONS THROUGH MID-CORNER DURING A TURN WOULD INEVITABLY CAUSE THE MOTORCYCLE AND ITS RIDER TO LOSE ...

Mileage: 8,700