2007 Yamaha YZFR1

WHILE RIDING IN NORMAL TRAFFIC CONDITIONS IN SECOND GEAR AT 5500 RPM S AT 48 MPH FOR A DURATION OF THREE OR MORE SECONDS AS IF CRUISING AT SPEED, APPLICATION OF THE THROTTLE PROVIDED LAGGING RESULTS. THROTTLE WAS APPLIED, AND THE MOTORCYCLE TOOK A UP TO TWO SECONDS TO REACT. THIS CONDITION IS REPEATABLE, AND THERE IS INSTANT THROTTLE RESPONSE AT 5000 RPMS AND 6000 RPMS IN THE SAME CONFIGURATION. THIS COULD BE AN ISSUE IF A RIDER IS FORCED TO WATCH GAUGES AS OPPOSED TO TRAFFIC TO STAY OUT OF AN RPM RANGE AS OPPOSED TO A POSTED SPEED. FURTHER THIS COULD CAUSE AN ISSUE WHERE INSTANT THROTTLE APPLICATION COULD BE THE ONLY ESCAPE TO AN EMERGENCY SITUATION (I.E. CROSS TRAFFIC DISOBEYING A TRAFFIC LIGHT OR A VEHICLE APPROACHING FROM BEHIND TOO QUICKLY). THIS ISSUE HAS BEEN REPORTED TO THE DEALER WHERE THE VEHICLE WAS PURCHASED FROM AS WELL AS YAMAHA CUSTOMER SERVICE. OTHER RIDERS HAVE REPORTED THE SAME ISSUE (REPEATABLE ON ALL BIKES WITH A US ENGINE CONTROL UNIT TO DATE), AND CURRENTLY, THE MANUFACTURER APPARENTLY DENIES THAT IT IS AN ISSUE.*AK

THE 2007 YAMAHA R1, STALLS FOR NO REASON AT ALL AND IN 2ND GEAR AT 5500 RPMS THERE IS A HUGE LAG AND IT ALSO OCCURS AT 50 MPH, AND WITH SPEED ERROR THAT IS USUALLY ASSOCIATED W/MOTORCYCLES, THAT MEANS THAT WERE ROUGHLY GOING ABOUT 45 MPH, WHICH IS THE EXPRESSWAY SPEEDS IN CALIFORNIA AND IF WE NEED TO ACCELERATE FOR ANY TYPE OF EMERGENCY SITUATION, IT TAKES THE BIKE 3-4 SECONDS BEFORE IT RESPONDS AND STARTS ACCELERATING. THIS IS A HUGE SAFETY ISSUE. AND I OWN 2 OF THESE MOTORCYCLES AND WILL BE DOING 2 SEPARATE COMPLAINTS AS WELL.*AK

THE 2007 YAMAHA R1, STALLS FOR NO REASON AT ALL AND IN 2ND GEAR AT 5500RPM THERE IS A HUGE LAG AND IT ALSO OCCURRS AT 50 MPH, AND WITH SPEEDO ERROR THAT IS USUALLY ASSOCIATED W/MOTORCYCLES, THAT MEANS THAT WERE ROUGHLY GOING ABOUT 45 MPH, WHICH IS THE EXPRESSWAY SPEEDS IN CALIFORNIA AND IF WE NEED TO ACCELERATE FOR ANY TYPE OF EMERGENCY SITUATION, IT TAKES THE BIKE 3-4 SECONDS BEFORE IT RESPONDS AND STARTS ACCELERATING. THIS IS A HUGE SAFETY ISSUE. AND I OWN 2 OF THESE MOTORCYCLES AND WILL BE DOING 2 SEPARATE COMPLAINTS AS WELL.*AK

I HAVE A 2007 YAMAHA R1.JUST GOT IT 2 WEEK AGO.AND I WAS RIDING ABOUT 50MPH AND TRY TO PASS A CAR AND HIT THE GAS AND NOTHING HAPPEN,NO RESPONCE ALMOUST GOT HIT BY A CAR ON THE PASS BECOUS THERE WAS NO RESPONCE ON THE GAS.SO I TRY THE SAME SPEED AGEN WITH NOBODY AROUND AND IT HAPPEN MORE TIME.I CALL THE DEALERSHIP WHERE I GOT THE BIKE FROM AND THEY DONT KNOW ANYTHING ABOUT IT SO THEY SAY.THE BIKE HAS 91MILS ITS BRAMD MEW BUT I PAY $12,000 AND THATS WHAT I GET THATS NOT RIGHT AND ALMOUST GOT KILL TOO.AOMWBODY HAS TO DO SOMETHING BEFORE THERES SOMEBODY GET HEART. *AK

AFTER STEADYING THE THROTTLE IN SECOND GEAR, AT 5500 RPM, 48 MPH, AND THEN APPLYING THROTTLE, THE MOTORCYCLE, DOES NOT ACCELERATE PROPERLY, AND LAGS SEVERELY. THE LAG IS SO SEVERE THAT A RIDER RUNS THE RISK OF BEING HIT FROM THE REAR, ESPECIALLY IN A TRAFFIC SITUATION, WHEN MERGING FOR EXAMPLE. THROUGH GENERALIZED RESEARCH, I HAVE DETERMINED THAT THE PROBLEM CAN BE RECREATED ON ANY US VERSION 2007 YAMAHA R1 MOTORCYCLE. THE PROBLEM CANNOT BE RECREATED ON A DYNOMETER. CHANGING THE GEARING, EXHAUST, PCIII, AND OR IGNITION MODULE DOES NOT CORRECT THIS PROBLEM. *JB