NHTSA Complaint #10188769 — 2007 YAMAHA YZFR1

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