YAMAHA Complaints

PROBLEM OCCURS DURING, OR SHORTLY AFTER CHANGING ALTITUDE. USUALLY BEGINS WITH A SLIGHT SURGING AT STEADY THROTTLE. THIS PROGRESSES TO A NON-RESPONSIVE THROTTLE. OPEN IT SLIGHTLY AND NOTHING HAPPENS. OPEN IT FURTHER AND IT COMES ON WITH A JOLT. SOMETIMES BIKE LURCHES LIKE ITS RUNNING OUT OF GAS. VERY DANGEROUS ESPECIALLY AT LOW SPEEDS OR IN TRAFFIC. ON 7/2/3007 YAMAHA CUSTOMER RELATIONS SAID I WAS THE 1ST CALLER WITH THESE SYMPTOMS. *TR

THE 2007 YAMAHA YZFR1 HAD INTERMITTENT AND SIGNIFICANT LOSS OF POWER AND STALLED WHILE RIDING. THIS WAS A WELL KNOWN PROBLEM THAT YAMAHA WAS AVOIDING TO RECALL. IT WAS EXCEEDINGLY DANGEROUS.*AK

2006 1700CC YAMAHA ROSD STAR. DANGEROUS TO OWN AND RIDE DUE TO STICKY VALVES. MOTORCYCLE LOSES POWER ON CURVES AND ON STRAIGHT ROADS DUE TO INCONSISTENT MOTOR PERFORMANCE. YAMAHA KNEW OF THIS BUT WOULD NOT FIX THE PROBLEM. *AK

1) THROTTLE FAINLS TO RESPOND PROPERLY WHEN ASCENDING TO A HIGHER ALTITUDE MORE THAN 1500FT HIGHER THAN THE STARTING POINT. 2) THIS HAS OCCURRED ON SEVERAL OCCASIONS. THE THROTTLE WILL FAIL TO RESPOND WHEN ADDING MORE THROTTLE. THE BIKE WILL BEGIN TO LOSS POWER UNTIL THE THROTTLE HAS BEEN TURNED TO ADD APPROXIMATELY 20% MORE, THEN IT WILL ACCELERATE ABRUPTLY. I HAVE RUN OFF THE ROAD ON A SLOW UPHILL CORNER WHILE TRYING TO KEEP UP WITH THE FLOW OF TRAFFIC. I ENDED UP BEING ABLE TO STOP BEFORE I CRASHED INTO A SNOW BANK. I HAVE EXPERIENCED THIS FAILURE ALMOST EVERYTIME I RIDE MY MOTORCYCLE INTO THE MOUNTAINS. THE MOTORCYCLE WILL ONLY BEGIN TO RESPOND CORRECTLY AFTER SHUTTING THE POWER OFF FOR ABOUT ONE MINUTE. 3) ADVENTURE MOTORSPORTS HAS DIAGNOSED THE ISSUE, AND TRIED TO MAKE ADJUSTMENTS TO CORRECT THE ISSUE. THIS HAS NOT HELPED. 46 OTHER OWNER HAVE REPORT THIS ISSUE TO ME AS WELL, THE LAST 6 DIGITS OF THEIR VIN'S ARE 000385 TO 003350 SO FAR. *TR

1) ENGINE FUEL CONTROL ISSUES WITH CHANGING ALTITUDE. 2) THROTTLE FAILS TO RESPOND TO INPUT UNTIL I INCREASE MORE THAN 20%. I THEN GET ALL 20% AT ONE MOMENT. I HAVE ALMOST CRASHED MY MOTORCYCLE WHILE RIDING IN THE MOUNTAINS OF CALIFORNIA AND WASHINGTON. I HAVE RUN OFF THE ROAD BECAUSE OF THE SUDDEN ACCELERATION. I WAS ABLE TO STOP UNHARMED DURING THAT INCIDENT. THE ENGINE CONTINUES TO RUN POORLY AFTER RETURNING TO THE ORIGINAL ALTITUDE I STARTED AT. 3) THROTTLE BODY ADJUSTMENTS HAVE BEEN MADE TO ADD MORE FUEL TO THE ENGINE ALL THE TIME. THIS HAS NOT HELPED. IT HAS JUST LESSENED THE SYMPTOMS, NOT FIXED IT. TURNING THE BIKE OFF FOR A 1 OR 2 MINUTES RETURNS THE ENGINE TO A PROPER RUNNING STATE. YAMAHA IS NOT ACKNOWLEDGING THAT THERE IS AN ISSUE, EVEN THOUGH MY DEALER (ADVENTURE MOTORSPORTS IN MONROE, WA) HAS RIDDEN MY MOTORCYCLE WHILE IT WAS ACTING UP. THIS ISSUE HAS BEEN REPORTED TO ME BY 46 OTHER OWNERS WITH VIN NUMBERS WITH THE LAST 6 NUMBERS OF 000385 TO 003350. *TR

WHEN RIDING IN THE MOUNTAINS WITH ELEVATION CHANGES OF 1000 FEET. OR MORE, THE MOTORCYCLE HAS PERIODS OF ZERO THROTTLE RESPONSE. THEN ALL AT ONCE IT WILL COME ON THROTTLE AND TAKE OFF VIOLENTLY. THIS IS A VERY DANGEROUS SITUATION WHEN IN THE MIDDLE OF A CURVE OR TRYING TO TAKE OFF FROM A STOP. *AK

TL*THE CONTACT OWNS A 2007 YAMAHA FJR13. WHILE DRIVING UPHILL AT 35 MPH, THE VEHICLE ACCELERATED TO 45 MPH WITHOUT WARNING. THE CONTACT STATED THAT HE BACKED OFF THE THROTTLE AND DOWNSHIFTED THE VEHICLE, WHICH RESOLVED THE ISSUE. APPROXIMATELY TWO WEEKS LATER, THE FAILURE RECURRED. THE FAILURE ONLY OCCURS WHILE DRIVING UPHILL. THE DEALER WAS UNABLE TO DIAGNOSE THE CAUSE OF FAILURE. THE CURRENT MILEAGE IS 3,700 AND FAILURE MILEAGE WAS 300.

WHILE RIDING THROUGH CHANGING ELEVATIONS, THE FUEL SYSTEM MALFUNCTIONS WHILE APPLYING THROTTLE BELOW 4,000 RPM. ESPECIALLY PREVALENT WHEN LOAD APPLIED NEAR IDLE SPEED. WHILE TRYING TO PERFORM A LOW SPEED MANEUVER (PULLING IN TO A GRAVEL PARKING LOT), THE ENGINE ACTED AS IF IT WAS GOING TO STALL, THEN CAUGHT SUDDENLY, RESULTING IN A FALL. *TR

WHILE RIDING THROUGH CHANGING ELEVATIONS, THE MOTORCYCLE EXPERIENCES AN EVER-INCREASING DELAY OF THROTTLE RESPONSE AFTER ENGINE BRAKING. THE SUDDEN DELIVERY OF FUEL TO THE ENGINE CAUSES UNSAFE HANDLING CHARACTERISTICS. IT ACTS AS IF IT IS OUT OF GAS WHILE TRYING TO ACCELERATE BELOW 4000 RPMS, THEN GETS AN UNEXPECTED DELIVERY OF POWER. THIS HAPPENED VIRTUALLY EVERY TIME I TRIED TO PREPARE FOR A CORNERING MANEUVER. *TR

BOILING GASOLINE IN GAS TANK. YAMAHA ATV 700 GRIZZLY YEAR 2007 EXHAUST VERY CLOSE TO GAS TANK. GAS BOILS AFTER RIDING FOR MORE THAN 1HR 30MIN. PRESSURE VENT ON GAS TANK STARTS TO SING. IF CAP IS REMOVED GAS WILL BOIL OUT ONTO THE OPERATOR. CONTACTED YAMAHA AND THEY SAID THEY KNOW AND THEY DON'T BELIEVE THEY HAVE A PROBLEM. *TR