2007 Yamaha YZFR1

ON MY YAMAHA YZF R1 THERE IS A DANGEROUS LACK OF RESPOND TIME WHEN THE THROTTLE IS OPENED. WHEN THE SPEED LIMIT IS AT LEAST 50 MPH, AND THE MOTORCYCLE IS RUNNING IN SECOND GEAR WITH THE RPMS AT 5500 WHICH IS AROUND 48 MPH, THEN HOLD THE MOTORCYCLE STEADY AT THIS RPM FOR A MOMENT AND THEN OPENING THE THROTTLE PRETTY FULL THE MOTORCYCLE WILL TAKES BETWEEN 3-4 SECONDS BEFORE IT WILL RESPOND. *AK

JUST PURCHASED 2007 YAMAHA R1 MOTORCYCLE WHICH NOW HAS 200 MILES ON IT. THE MOTORCYCLE WILL NOT ACCELERATE WHEN RPMS ARE HELD AT 5500 IN SECOND GEAR. NOTICED THE PROBLEM WHEN TRYING TO ACCELERATE PAST A CAR BEFORE AN INTERSECTION. THE MOTORCYCLE WOULD NOT ACCELERATE , WHICH LED TO A POTENTIALLY DANGEROUS, POSSIBLY FATAL SCENARIO. *AK

I RECENTLY PURCHASE A 2007 YAMAHA YZF R-1. UNDERSTANDINGS IT IS THE FIRST YEAR YAHMAHA USES THIS TECHNOLOGY ON THE R1S WAS A CONCERN. BUT I BOUGHT IT ANYWAY. MY FEARS CAME TRUE WHEN MERGING ONTO FREEWAY. THE BIKE HAS A DANGEROUS THROTTLE LAG IN 2ND GEAR AT 5500RPMS (45MPH). THIS IS AN UNSAFE SITUATION ON ANY VEHICLE BUT ESP A 2 WHEEL MOTORCYCLE. APPARENTLY THERE IS NO FIX FOR THE PROBLEM AND YAMAHA IS NOT PLANNING A RECALL DESPITE KNOWING OF THE HAZARDOUS POSITION IT HAS PLACED ITS CUSTOMERS IN. *TR

MY 2007 YAMAHA R1 1. THE BIKE CUTS OFF ALMOST EVERY TIME I COME TO A STOP. IT DOES NOT MATTER WHETHER THE BIKE IS IN NEUTRAL OR IN GEAR WITH THE CLUTCH PULLED IN. IT DIED APPROXIMATELY. 15-20 TIMES ON MY RIDE. 2. IF I BLIP/REV THE BIKE IN NEUTRAL OR WHILE IN GEAR WITH THE CLUTCH PULLED IN, THE BIKE SHUTS OF AS WELL. 3. I WAS MERGING ON THE FREEWAY IN SECOND GEAR AND WHEN I WENT TO SPEED UP, THE BIKE HESITATED FOR ABOUT 3-4 SECONDS AND THEN VERY SLOWLY PICKED UP. I WAS ALMOST HIT BY THE CAR BEHIND ME. I REALIZED THAT IF I'M AT 5500 RPM'S IN SECOND GEAR FOR A FEW SECONDS AND THEN OPEN THE THROTTLE, IT CAUSES THIS LAG EVERY SINGLE TIME. THIS IS DEFINITELY NOT SAFE! I WAS ALMOST REAR ENDED BY A CAR. 4. THE BIKE ALSO REACHED 250 DEGREES SEVERAL TIMES UNDER CRUISING CONDITIONS. I CAN'T EVEN TRUST THIS BIKE TO STAY RUNNING EITHER 'CAUSE IT SEEMS IT DIES EVERY TIME I COME TO A STOP. 5. THE BIKE ALSO SOMETIMES TAKES QUITE A FEW TRIES TO START IT. I HAVE TO HOLD DOWN THE STARTER FOR ABOUT 3-5 SECONDS SOMETIMES. *TR

TL* THE CONTACT OWNS A 2007 YAMAHA YZFR1. WHILE IN SECOND GEAR AT 5500 RPMS AND WHEN OPENING THE THROTTLE THE MOTORCYCLE DID NOT MOVE. THE ACCELERATOR GAVE NO RESPONSE FOR ABOUT FOUR SECONDS. THE MANUFACTURER STATED THAT SINCE THERE WAS NO RECALL THERE WAS NOTHING THEY COULD DO TO ASSIST HIM. THE CURRENT AND FAILURE MILEAGE WERE 20. *AK

TL*THE CONTACT OWNS A 2007 YAMAHA YZFR1 MOTORCYCLE. WHILE DRIVING 55 MPH THE CONTACT ATTEMPTED TO ACCELERATE AND THERE WAS NO THROTTLE RESPONSE. THE CONTROL CHIP IN THE THROTTLE WAS REPLACED, AND IT WASN'T OPERATING NORMALLY. THE FAILURE ONLY OCCURRED IN SECOND GEAR AT 5500 RPMS AND IT ALMOST CAUSED A COLLISION. THE FAILURE MILEAGE WAS 10, AND THE CURRENT MILEAGE WAS 1,000. *AK UPDATED 05/23/07 *TR

MY 2007 YAMAHA R1 MOTORCYCLE HAS THROTTLE RESPONSE LAG IN 2ND GEAR AT ABOUT 50 MPH. I EXPERIENCED THE LAG WILL RIDING AND NOTICED THAT WHEN I WAS GIVING THE ENGINE THROTTLE I RECEIVED NO RESPONSE FOR ABOUT 4 SECONDS. WHEN I DID FINALLY RECEIVE THROTTLE RESPONSE, I WAS APPLYING TOO MUCH THROTTLE (BECAUSE I WAS INITIALLY NOT GETTING ANY RESPONSE) AND THE MOTORCYCLE ACCELERATED SO QUICKLY THAT IT ALMOST KICKED ME OFF (THE MOTORCYCLE POPPED A WHEELIE). AFTER THE EXPERIENCE, I DID NOT THINK TOO MUCH OF IT UNTIL I READ ABOUT THE PROBLEM ON THE INTERNET. AFTER READING ABOUT IT, I WENT OUT RIDING AND WAS ABLE TO REPRODUCE THE THROTTLE LAG ON COMMAND. THE THROTTLE LAG RESPONSE TAKES PLACE IN SECOND GEAR, 50 MPH, AND 5500 RPMS. THE ISSUE ABOUT THE PROBLEM IS THAT WHEN THE THROTTLE FINALLY KICKS IN THE USER HAS THE THROTTLE FULLY OPEN IN AN ATTEMPT TO COUNTER ACT IT AND THE MOTORCYCLE RESPONDS VIOLENTLY. THE RIDER COULD BE KICKED OFF THE MOTORCYCLE IF THEY ARE NOT PREPARED. *JB

TL* THE CONTACT OWNS A 2007 YAMAHA YFZR1. WHILE RIDING 45 MPH IN SECOND GEAR THE CONTACT ATTEMPTED TO ACCELERATE TO MERGE INTO TRAFFIC AND THE VEHICLE SHUT OFF AND WAS STRUCK BY ANOTHER VEHICLE UNDER NORMAL ROAD CONDITIONS. THE CONTACT HAD TO LET THE RPMS DECREASE TO UNDER 5,000 AND TURN THE THROTTLE IN ORDER TO ACCELERATE. THE FAILURE RECURRED AFTER THE VEHICLE WAS TEST DRIVEN AT 45 MPH. THE VEHICLE HAS NOT BEEN INSPECTED BY THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 56. *AK

THIS MOTORCYCLE CONSISTENTLY REFUSES TO ACCELERATE WHEN IN SECOND GEAR AT APPROXIMATELY 550RPM OR 49 MPH. THERE IS A SUBSTANTIAL DELAY IN RESPONSE AND A VERY SLOW INCREASE IN SPEED UNTIL NEARLY 70 MPH IS REACHED WHEN IT STARTS TO ACCELERATE AS NORMAL. THERE ARE NO FAULT CODES OR ANY OTHER ABNORMAL INDICATIONS, AND THIS CAN BE RECREATED AT ANY TIME. THIS POSES A SIGNIFICANT HAZARD FOR COLLISION AVOIDANCE AS WELL AS MERGING WITH EXISTING TRAFFIC. *TR