2007 YAMAHA YZFR1 Engine And Engine Coolingengine Problems

2007 YAMAHA YZF-R1. MANUFACTURER DEFECT THAT CAUSES THE INTAKE VALVE IN THE NUMBER 4 CYLINDER TO RUB ON THE GUIDE AND CAUSES THE VALVE TO BREAK OFF INTO THE CYLINDER. I WAS LUCKY ENOUGH TO CATCH IT EARLY AND TOOK IT TO MY REPAIR GUY. HE DISASSEMBLED THE HEAD AND FOUND THE BAD VALVE. SENT IT OUT TO BE MACHINED AND THE MACHINIST WAS UNABLE TO GET A VALVE GUIDE TO PRESS IN DUE TO THE BAD MACHINING FROM THE FACTORY. HE THEN HAD TO MACHINE IT OUT AND REPLACE WITH A DIFFERENT GUIDE. I CALLED YAMAHA WHEN THIS WAS HAPPENING AND THEY TOLD ME THAT NO ONE ELSE HAD REPORTED A PROBLEM LIKE THIS. I LATER LEARNED THAT THEY DO KNOW ABOUT IT AND IT IS A RECURRING PROBLEM FOUND IN MANY OF THE 2007 R1'S PRIMARILY THOSE STAMPED 02/07 ON THE VIN. I CALLED YAMAHA BACK AND THEY...

I RECENTLY PURCHASED THE 2007 R-1 MOTORCYCLE AND HAVE BEEN HAVING CONTINUOUS PROBLEMS WITH THE THROTTLE LAG. 2ND GEAR AT 5500 MPH THE MOTORCYCLE HAD NO POWER. I FOUND THIS TO BE VERY DANGEROUS WHEN PASSING VEHICLES AND ACCELERATING THROUGH TURNS. I FELT THAT YAMAHA WAS NOT DOING THEIR PART TO FIX THE PROBLEM. $12,000 LATER AND UNHAPPY. PLEASE HELP. *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

2007 YAMAHA R1 MOTORCYCLE HAS A PROBLEM! THE ENGINE CUTS OUT AT AROUND 5500 RPM. IF YOUR AT THIS RPM AND OPEN THE THROTTLE IT WILL NOT RESPOND AT ALL FOR A FEW SECONDS, THEN IT WILL TAKE OFF. I FOUND THIS TO BE VERY DANGEROUS. IT ALMOST COUSED AN ACCIDENT.*AK

TL* - THE CONTACT OWNS A 2007 YAMAHA MOTORCYCLE YZF-R1. WHEN THE MOTORCYCLE IS IN 2ND GEAR AND AT 5500 RPMS, THE MOTORCYCLE HESITATES FOR APPROXIMATELY 3-4 SECONDS WHEN HE TRIED TO ACCELERATE. THE CONTACT HAD NOT TAKEN THE MOTORYCLE TO BE DIAGNOSED. THE FAILURE MILEAGE WAS 1 MILE, AND THE CURRENT MILEAGE WAS 743 MILES.

(1) THROTTLE LAG ON 2007 YAMAHA R1, TRY TO ACCELERATE IN 2ND GEAR AT 5500 RPM'S AND THE BIKE DOESN'T MOVE, THEN ALL OF THE SUDDEN A VIOLENT JERK AND THE BIKE IS NOW VIOLENTLY ACCELERATION. (2) I WAS IN TRAFFIC TRYING TO PASS A VEHICLE AND ALMOST GOT RUN OVER DUE TO THE LAG. THERE IS NO FIXED REPORT, BUT THE EUROPEAN BIKES DON'T HAVE THIS SO A NEW ECU WOULD FIX IT. OR A REFLASH OF THE ECU. (3) THE REARSET (AKA FOOTPEG BRACKETS) ARE BREAKING OFF WHEN WEIGHT IS APPLIED. STANDING UP ON THE BIKE OR JUST PUTTING PRESSURE ON THEM WILL CAUSE THEM TO SNAP. (4) FRIEND WHO HAS THE SAME BIKE BROKE HIS FOOT WHEN THE RESET BROKE. (5) HAD TO BUY AFTERMARKET REAR SETS TO AVOID THIS PROBLEM. SPENT $ 500, ON A PRODUCT I SHOULD NOT HAVE TO BUY..YAMAHA NEEDS TO REIMBURSE ME...