2004 Yamaha YZF-R1

MY 2004 R1 CUTS OUT WHILE DRIVING AND DIES WHEN YOU PULL THE CLUTCH. I AM A TECH AT A AUTO DEALER AND IT FEELS LIKE THE THROTTLE POSITION LOSES SIGNAL. IF THE PROBLEMS PERSISTS AND THE BIKE DIES WITH THE CLUTCH OUT, THE REAR WHEEL WILL LOCK! THE DEALERS WILL NOT WARRANTY THIS PART. THIS IS NOT A WEAR AND TEAR ITEM AND IT IS A SAFETY CONCERN. *NM

THE 2004 YAMAHA R1 STARTS SHAKING AND BACKFIRING. WHEN THE CLUTCH IS PULLED IN THE ENGINE DIES. ON MULTIPLE OCCASIONS WHILE RIDING THE ENGINE HAS STOPPED RESULTING IN MANY NEAR CRASHES. THE ONLY WAY TO FIX THE PROBLEM IS TO TURN THE KEY ON AND OFF AGAIN. THIS BIKE IS UNSAFE. THERE ARE NUMEROUS COMPLAINTS ABOUT THIS FROM MANY PEOPLE AND YAMAHA IS DOING NOTHING. *NM

I OWN A 2005 YAMAHA YZF-R1, AFTER 2500 MILES THE MOTOR WILL INTERMITTENTLY DROP TO AROUND 500RPM OR LOWER WHEN IDLING OR WHEN CLUTCH LEVER IS PULLED IN. WHEN THIS HAPPENS THE MOTOR WILL DROP INTO A LUMPING AND THEN CUT OUT. IT ALSO OCCURS WHILE MOTORCYCLE IS IN MOTION. THE MOTOR WILL JERK AND LURCH WHEN YOU ENGAGE THE CLUTCH IT DIES. THIS HAS HAPPENED SEVERAL TIMES AND IS A REAL HAZARD. WHEN MOTORCYCLE IS IN DIAGNOSTIC MODE IT DETECTS A FAULT CODE FOR THE (TPS) THROTTLE POSITION SENSOR AND HAS BEEN DOCUMENTED ON HUNDREDS OF R1'S WORLDWIDE. HERE IS A LINK TO THE FORUM WHERE IT IS BEING DISCUSSED. HTTP://WWW.R1-FORUM.COM/FORUMS/SHOWTHREAD.PHP?S=&THREADID=98831&PERPAGE=20&PAGENUMBER=1. *JB

I OWN A 2004 YAMAHA YZF-R1 (PURCHASED NEW). ABOUT THE BEGINNING OF MAY OF 2005 THE MOTORCYLE WOULD STALL ON ME WHEN THE BIKE WASN'T MOVING OR WHENEVER THE CLUTCH IS PULLED IN. BASICALLY THE BIKE'S IDLE WOULD DROP TO ABOUT 500 RPM, THE BIKE WOULD RUN REALLY ROUGH, AND IT WOULD STALL WHENEVER THE CLUTCH WAS PULLED IN OR WHEN THE SPEED WAS DECREASED TO BELOW 5 MPH. I HAVE ALSO NOTICED THAT WHEN THE PROBLEM IS STARTING TO OCCUR THAT THE BIKE WOULD BUCK AND THERE WOULD FEEL LIKE THERE WASN'T ANY ENGINE BRAKING. I KNOW THAT I AM NOT THE ONLY ONE WITH THIS PROBLEM. THIS IS HAPPENING TO ALL YAMAHA RIDERS ACROSS THE WORLD AND CAN BE FOUND ON MY YAMAHA FORUM SITES. THIS PROBLEM NEEDS TO BE FIXED BEFORE OTHER CRASH RESULTING IN INJURY OR DEATH. *NM

MY SON WAS RIDING A 2004 YAMAHA YZ250F MOTOCROSS MOTORCYCLE ON 1/7/05 WHEN ON HIS APPROACH TO A JUMP HIS MOTOR QUIT RUNNING. THE CARBURETOR POPPED OUT OF ITS MOUNTING [INTAKE BOOT]. THE CONSEQUENCE WAS THAT AS MY SON WAS COMMITTED TO CLEARING THE JUMP. THE YAMAHA LOST POWER, AND HE CRASHED INTO THE FACE OF THE LANDING HILL. AND BROKE HIS COLLARBONE ON IMPACT. AFTER I MADE SEVERAL INQUIRIES I WAS SURPRISED TO LEARN THAT THIS IS A COMMON PROBLEM WITH THIS MAKE AND MODEL OF MOTORCYCLE SINCE IT INTRODUCTION IN 2001. WHEN I CALLED YAMAHA CUSTOMER RELATIONS I WAS TOLD THAT THERE WASN'T A PROBLEM. MY SON BROKE HIS COLLAR BONE,,WHAT IF IT WAS HIS NECK OR WORSE.THERE SHOULD SEND A LETTER TO EVERYONE WHO BOUGHT A YAMAHA YZ250F AND SEE HOW MANY TIMES THIS HAS HAPPANED AND WHAT THE RESULTING INJURIES WERE. THANK YOU. *AK