2004 Yamaha YZF-R1

I WAS TRAVELING ON INTERSTATE 395 FROM THE WOODBRIDGE, VA. AREA DURING HEAVY TRAFFIC TIME IN THE MORNING ON MY WAY TO WORK. ABOUT A MILE AWAY FROM THE EXIT THAT I NORMALLY TAKE FOR WORK MY R1 STARTED TO JERK OR IT SEEMED AS IT WAS NOT GETTING ENOUGH GAS, BUT AS I DOWNSHIFTED THE BIKE DROPPED IT'S RPM REALLY RAPIDLY AND THE BIKE SHUT COMPLETELY OFF, AT THIS TIME I WAS TRAVELING ABOUT 60 MPH. I IMMEDIATELY PULLED THE CLUTCH AND TRIED TO HIT THE IGNITION STARTER SWITCH WHICH SEEMED TO DO NOTHING. SO I THEN TURNED THE KEY TO THE OFF POSITION AND THEN BACK ON, HIT THE STARTER SWITCH AND THE BIKE STARTED. THIS IS VERY DANGEROUS DURING HIGH SPEEDS ON THE HIGHWAY. I DID NOT KNOW WHAT HAPPENED TO THE BIKE AT THIS POINT. I THOUGHT THAT MAYBE IT WAS OVERHEATING BECAUSE IT WAS PRETTY HOT AND HUMID THAT MORNING. BUT IT DID THE SAME THING AS I GOT CLOSER TO MY WORK. ON MY WAY HOME FROM WORK IT DID THE SAME THING SO AT THIS POINT I KNEW SOMETHING WAS REALLY WRONG. I JUST WANTED TO MAKE IT HOME SAFELY, BUT I HAD TO WORRY ABOUT MY BIKE CUTTING OFF AND SLOWING DOWN AND SOMEONE RUNNING INTO THE BACK OF ME BECAUSE THERE WAS NOTHING I COULD DO BEING THAT MY R1 WOULD JUST SHUT OFF SUDDENLY IF I DID NOT KEEP ON THE THROTTLE. DURING ALL OF THIS THE BIKE WOULD RIDE REALLY ROUGH AND SOUND LIKE A REMOTE CONTROL CAR, IN OTHER WORDS IT DIDN'T SOUND GOOD AT ALL. LUCKILY I MADE IT HOME SAFELY AND HAVE NOT RIDDEN THE BIKE SINCE THEN. I HAVE DONE SOME RESEARCH ON THE INTERNET AND HAVE READ SOME OF THE STORIES AND EVERYTHING I READ SOUNDS JUST LIKE MY PROBLEM SO IT MUST BE THE SAME AS WHAT WAS LISTED HERE ON THIS SITE. THROTTLE POSITION SENSOR. *NM UPDATED 03/26/07*JB

I HAVE A 2004 YAMAHA R1 THAT WOULD IDLE DOWN TO 500 RPM AND THEN SHUT OFF WHILE BIKE WAS IN MOTION. THIS HAPPENED MANY TIMES UNTIL THE BIKE WOULD NOT RUN FOR A MILE BEFORE SHUTTING OFF. THE ONLY WAY TO SHUT THE BIKE BACK ON WAS TO TURN THE KEY COMPLETELY OFF AND THEN TURN THE BIKE BACK ON. I TOOK THE BIKE TO HEYSER CYCLE IN LAUREL, MD. THEY REPLACED THE TPS SENSORS WITH NO RESOLVE. THEN FINALLY REPLACED THE ENTIRE SET OF THROTTLE BODIES WHICH SEEMED TO CURE THE PROBLEM.. THIS WAS REPLACED IN MARCH OF 2005. I HAD APPROX. 11,000 MILES ON THE ODOMETER. THE PROBLEM HAS RECENTLY COME BACK WITH APPROXIMATELY 22,000 MILES ON THE ODOMETER. IT IS BACK IN THE SHOP WAITING FOR ANOTHER SET OF THROTTLE BODIES UNDER WARRANTY. *NM

I WAS GOING TO WATCH THE GAME IN PASADENA LAST NIGHT DOING ABOUT 75 MPH ON THE FASTLANE OF THE 134 FWY. ALL OF A SUDDEN I LOSE ALL POWER,(IT WAS LIKE SOMEONE HIT MY CUT OFF SWITCH ON MY RIGHT HANDLE BAR) LUCKY FOR ME I WAS ABLE TO MAKE IT ALL THE WAY TO THE RIGHT SHOULDER, SCARY. I TURNED THE KEY OFF, THEN ON AND RESTARTED, NO PROBLEM. IM HEARING FROM A LOT OF PEOPLE THAT IT IS THE TPS SENSORS: HTTP://WWW.R1-FORUM.COM/FORUMS/SHOWTHREAD.PHP?S=&THREADID=98831&PERPAGE=20&PAGENUMBER=1 HTTP://WWW.RONAYERS.COM/FICHE/501_2451/INTAKE_2/INTAKE_2.CFM?MAN=YA&GROUPID=32040&PARENT=31910. *NM