2007 Yamaha YZFR1 acceleration problems

VEHICLE SPEED CONTROL

PAYED $13,000 FOR A MOTORCYCLE THAT DOES NOT RESPOND APPROPRIATELY...2ND GEAR AT 5500 RPM. MOTORCYCLE WILL NOT ACCELERATE UNTIL A GOOD TIME AFTER I'VE ACCELERATED. CONTINUES TO HAPPEN AND WILL NOT BE ELIMINATED UNTIL ECU IS CORRECTED BY YAMAHA! COULD COST SOMEONE THEIR LIFE OR LIMB IF INJURED.

NHTSA complaint #10191291 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

2007 YAMAHA YZF-R1. WHILE RIDING IN SECOND GEAR AT 5500 RPMS AND WHEN FULL THROTTLE WAS USED THERE WAS A LAG OF AROUND 4 SECONDS. WHEN DROPPING DOWN TO 5000 RPMS OR 6000 RPMS, AND USING FULL THROTTLE RESPONSE WAS INSTANTANEOUS.

NHTSA complaint #10191201 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

SEVERE THROTTLE LAG IN 2ND GEAR AT 5500 RPM WHICH EQUATES TO ABOUT 48 MPH.

NHTSA complaint #10190469 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

IN SECOND GEAR GOING ABOUT 50 MPH WHEN OPENING THE THROTTLE THE MOTORCYCLE STAYED AT 50 MPH FOR APPROXIMATELY 3-4 SEC BEFORE SLIGHTLY ACCELERATING AT THAT POINT. THE OTHER DAY IT ALMOST CAUSED ME TO GET INTO AN ACCIDENT BECAUSE I COULD BARELY GET OUT OF THE WAY OF A VEHICLE. I HAVE SINCE LEARNED THIS HAPPENED WITH ALL 2007 YAMAHA YZF VEHICLES. WHEN I CONTACTED YAMAHA THEY SAID THEY WERE AWARE OF IT, BUT HAVE NO PLANS ON FIXING IT YET OR IF THEY EVER DO!

NHTSA complaint #10190490 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

WHEN RIDING ABOUT 5500 RPMS IN SECOND GEAR THE THROTTLE SYSTEM BECAME COMPLETELY UNRESPONSIVE. THE ENGINE WILL NOT GAIN RPMS NO MATTER HOW FAR THE THROTTLE WAS TURNED. ONE MUST LET THE THROTTLE RETURN TO THE STARTING POSITION AND THEN SLOWLY TURN IT BACK TO ACCELERATE. THIS WAS A STARTLING EVENT, EVEN WHEN IT IS KNOWN TO HAVE OCCURRED BECAUSE IN THE COURSE OF RIDING THERE WERE SO MANY OTHER FACTORS TO BE CONCERNED WITH, SUCH AS NOTING THE POSITION OF OTHER TRAFFIC, STEERING, ETC. THIS WAS A SAFETY ISSUE, AND WAS MOST DEFINITELY A DEFECT IN THE DESIGN/MANUFACTURING OF THE VEHICLE.

NHTSA complaint #10190541 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

JUST PURCHASED 2007 YAMAHA R1 MOTORCYCLE WHICH NOW HAS 200 MILES ON IT. THE MOTORCYCLE WILL NOT ACCELERATE WHEN RPMS ARE HELD AT 5500 IN SECOND GEAR. NOTICED THE PROBLEM WHEN TRYING TO ACCELERATE PAST A CAR BEFORE AN INTERSECTION. THE MOTORCYCLE WOULD NOT ACCELERATE , WHICH LED TO A POTENTIALLY DANGEROUS, POSSIBLY FATAL SCENARIO.

NHTSA complaint #10190448 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL:CABLES

ON MY YAMAHA YZF R1 THERE IS A DANGEROUS LACK OF RESPOND TIME WHEN THE THROTTLE IS OPENED. WHEN THE SPEED LIMIT IS AT LEAST 50 MPH, AND THE MOTORCYCLE IS RUNNING IN SECOND GEAR WITH THE RPMS AT 5500 WHICH IS AROUND 48 MPH, THEN HOLD THE MOTORCYCLE STEADY AT THIS RPM FOR A MOMENT AND THEN OPENING THE THROTTLE PRETTY FULL THE MOTORCYCLE WILL TAKES BETWEEN 3-4 SECONDS BEFORE IT WILL RESPOND.

NHTSA complaint #10190454 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

TL* THE CONTACT OWNS A 2007 YAMAHA YZFR1. WHILE IN SECOND GEAR AT 5500 RPMS AND WHEN OPENING THE THROTTLE THE MOTORCYCLE DID NOT MOVE. THE ACCELERATOR GAVE NO RESPONSE FOR ABOUT FOUR SECONDS. THE MANUFACTURER STATED THAT SINCE THERE WAS NO RECALL THERE WAS NOTHING THEY COULD DO TO ASSIST HIM. THE CURRENT AND FAILURE MILEAGE WERE 20.

NHTSA complaint #10189388 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

MY 2007 YAMAHA R1 1. THE BIKE CUTS OFF ALMOST EVERY TIME I COME TO A STOP. IT DOES NOT MATTER WHETHER THE BIKE IS IN NEUTRAL OR IN GEAR WITH THE CLUTCH PULLED IN. IT DIED APPROXIMATELY. 15-20 TIMES ON MY RIDE. 2. IF I BLIP/REV THE BIKE IN NEUTRAL OR WHILE IN GEAR WITH THE CLUTCH PULLED IN, THE BIKE SHUTS OF AS WELL. 3. I WAS MERGING ON THE FREEWAY IN SECOND GEAR AND WHEN I WENT TO SPEED UP, THE BIKE HESITATED FOR ABOUT 3-4 SECONDS AND THEN VERY SLOWLY PICKED UP. I WAS ALMOST HIT BY THE CAR BEHIND ME. I REALIZED THAT IF I'M AT 5500 RPM'S IN SECOND GEAR FOR A FEW SECONDS AND THEN OPEN THE THROTTLE, IT CAUSES THIS LAG EVERY SINGLE TIME. THIS IS DEFINITELY NOT SAFE! I WAS ALMOST REAR ENDED BY A CAR. 4. THE BIKE ALSO REACHED 250 DEGREES SEVERAL TIMES UNDER CRUISING CONDITIONS. I CAN'T EVEN TRUST THIS BIKE TO STAY RUNNING EITHER 'CAUSE IT SEEMS IT DIES EVERY TIME I COME TO A STOP. 5. THE BIKE ALSO SOMETIMES TAKES QUITE A FEW TRIES TO START IT. I HAVE TO HOLD DOWN THE STARTER FOR ABOUT 3-5 SECONDS SOMETIMES.

NHTSA complaint #10189407 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

TL*THE CONTACT OWNS A 2007 YAMAHA YZFR1 MOTORCYCLE. WHILE DRIVING 55 MPH THE CONTACT ATTEMPTED TO ACCELERATE AND THERE WAS NO THROTTLE RESPONSE. THE CONTROL CHIP IN THE THROTTLE WAS REPLACED, AND IT WASN'T OPERATING NORMALLY. THE FAILURE ONLY OCCURRED IN SECOND GEAR AT 5500 RPMS AND IT ALMOST CAUSED A COLLISION. THE FAILURE MILEAGE WAS 10, AND THE CURRENT MILEAGE WAS 1,000. *AK UPDATED 05/23/07

NHTSA complaint #10189044 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

TL* THE CONTACT OWNS A 2007 YAMAHA YFZR1. WHILE RIDING 45 MPH IN SECOND GEAR THE CONTACT ATTEMPTED TO ACCELERATE TO MERGE INTO TRAFFIC AND THE VEHICLE SHUT OFF AND WAS STRUCK BY ANOTHER VEHICLE UNDER NORMAL ROAD CONDITIONS. THE CONTACT HAD TO LET THE RPMS DECREASE TO UNDER 5,000 AND TURN THE THROTTLE IN ORDER TO ACCELERATE. THE FAILURE RECURRED AFTER THE VEHICLE WAS TEST DRIVEN AT 45 MPH. THE VEHICLE HAS NOT BEEN INSPECTED BY THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 56.

NHTSA complaint #10188696 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

TL*THE CONTACT OWNS A 2007 YAMAHA YZFR1. WHILE DRIVING IN SECOND GEAR AT 48 MPH OR 5500 RPM, THE VEHICLE WOULD TAKE APPROXIMATELY FOUR SECONDS TO ACCELERATE WHEN THE THROTTLED WAS TURNED. THIS FAILURE HAS OCCURRED ON APPROXIMATELY 20 OCCASIONS. THE DEALER WAS ABLE TO DUPLICATE THE PROBLEM, BUT WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER INFORMED THE CONTACT THAT THERE WERE NO FAILURES WITH THE VEHICLE. THE CURRENT AND FAILURE MILEAGE WERE 380.

NHTSA complaint #10188383 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

TL*THE CONTACT OWNS A 2007 YAMAHA YZFR1. WHILE DRIVING 48 MPH, THE VEHICLE FAILS TO ACCELERATE WHEN HE TURNS THE THROTTLE. THE CONTACT STATED THAT THIS ONLY OCCURS IN SECOND GEAR AT 5500 RPM. INITIALLY, THE DEALER STATED THAT THEY WOULD CONTACT YAMAHA. THE DEALER IS CURRENTLY STATING THAT THE VEHICLE IS OPERATING NORMALLY AND THE MANUFACTURER STATED THAT THERE IS NO FAILURE. THE CONTACT STATED THAT HE EXPERIENCED THE FAILURE WHILE DRIVING 48 MPH. THE CURRENT AND FAILURE MILEAGES WERE 1,250.

NHTSA complaint #10188275 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

2007 YAMAHA YZF R-1: A DISTINCTIVE AND DANGEROUS THROTTLE LAG THAT OCCURS IN 2ND GEAR AT 5500 RPM THAT LASTS FOR 3~5 SECONDS. I HAVE HAD A CLOSE CALL UNDER HEAVY TRAFFIC CONDITIONS. THIS IS A SERIOUS ISSUE THAT COULD LEAD TO INJURY OR DEATHS. YAMAHA CUSTOMER SUPPORT WAS CALLED AND I WAS TOLD THAT " MODEL DOES THAT" AND THAT THEY HAD NO "FIX" FOR IT.

NHTSA complaint #10188157 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

TL*THE CONTACT OWNS A 2007 YAMAHA YZFR1, WHICH STALLED FOR TWO TO THREE SECONDS WHEN THE ENGINE REACHED 5500 RPMS AND THE THROTTLE ACCELERATED. THE VEHICLE WAS BROUGHT TO THE DEALER FOR INSPECTION. THE CONTACT STATED THAT EACH MODEL OF THE VEHICLE HAD THE SAME FAILURE THAT MAY CAUSE A CRASH WHILE DRIVING. THE CURRENT MILEAGE IS 331 AND FAILURE MILEAGE WAS 300.

NHTSA complaint #10188068 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I PURCHASED MY MOTORCYCLE BRAND NEW AND NOTICED ONE DAY WHILE TRYING TO ACCELERATE IN SECOND GEAR AFTER SLOWING THAT THE BIKE DID NOT RESPOND. THE BIKE ACTED AS IF IN SLOW MOTION AND THEN ALL OF A SUDDEN THE POWER RETURNED TO IT. IT WILL CONTINUE TO DO IT TO THIS DAY AND I DO NOT KNOW WHY. I HAVE SINCE LEARNED IT IS A WIDESPREAD PROBLEM. I BELIEVE IT IS A VERY REAL SAFETY ISSUE DUE TO THE FACT THAT IT HAS HAPPENED ONCE WHEN I WAS TRYING TO GET OUT OF THE WAY OF A VEHICLE THAT WAS MOVING INTO MY LANE. LUCKILY THEY NOTICED ME AT THE LAST MINUTE BUT I CAN'T EXPECT THAT TO ALWAYS BE THE CASE.

NHTSA complaint #10187703 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

TL*THE CONTACT OWNS A 2007 YAMAHA YZFR1. WHILE ATTEMPTING TO ACCELERATE FROM 47 TO 55 MPH THE VEHICLE HESITATED FOR THREE TO FIVE SECONDS. THE FAILURE HAS BEEN OCCURRING SINCE THE VEHICLE WAS PURCHASED FOURTEEN DAYS AGO. THE CONTACT FILED A COMPLAINT ON TWO OCCASIONS WITH THE DEALER AND THE MANUFACTURER, HOWEVER, BOTH HAVE STATED THAT THE VEHICLE WAS OPERATING NORMALLY. THE CURRENT MILEAGE WAS 636, AND FAILURE MILEAGE WAS 50.*AK THE CONSUMER PROVIDED INFORMATION ON OTHER COMPLAINTS PERTAINING TO THE SAME PROBLEM. UPDATED 05/04/07

NHTSA complaint #10187575 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

THERE IS A THROTTLE LAG ON MY 2007 YAMAHA R1 FOR ABOUT 3 SECONDS AT SECOND GEAR 5500 RPMS.

NHTSA complaint #10187397 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I WAS RIDING ON THE FREEWAY ON ROUTE 1. I TRIED TO PASS A CAR IN TRAFFIC IN 2ND GEAR AT 5500 RPM NO THROTTLE RESPONSE FOR APPROXIMATELY 4 SECONDS. THIS BIKE DID NOT ACCELERATE FROM 5500 RPMS IN 2ND GEAR PROPERLY. HAVING NO THROTTLE RESPONSE IN 2ND GEAR AT 5500 COULD HAVE COST ME MY LIFE. YAMAHA SAID THERE WAS NOTHING WRONG WITH THE BIKE. PLEASE HELP BEFORE SOMEONE GOT HURT .

NHTSA complaint #10187263 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

THE 2007 YAMAHA R1 MOTORCYCLE WITH FLY-BY-WIRE THROTTLE HAS A DEFINITE LAG OF THROTTLE. THIS SEEMS TO HAPPEN A LOT AT 5,500 RPMS WHILE IN 2ND GEAR. WHEN IT OCCURS THERE IS AT LEAST A 6-8 SECOND LAG IN THE THROTTLE. IT FEELS LIKE THE ENGINE SHUT OFF , THEN IT VERY SLOWLY COMES BACK TO LIFE. I FEEL THIS PROBLEM EVERY TIME I RIDE THE MOTORCYCLE AND CAN REPRODUCE IT AT WILL. THIS ALMOST CAUSED ME TO GET IN AN ACCIDENT BEING REAR-ENDED. I HAVE CONTACTED THE LOCAL DEALER, WHO SAID IT WASN'T AN ISSUE , AND ALSO YAMAHA WHO TOLD ME THAT THIS WAS THE WAY IT WAS SUPPOSED TO BE. TO ME THIS SEEMS TO BE A SAFETY ISSUE BECAUSE WHEN IT HAPPENS THE MOTORCYCLE WILL NOT ACCELERATE. I A WONDER IF THERE IS A GLITCH WITH THE THROTTLE-BY-WIRE SYSTEM WHERE THERE ISN'T ANY THROTTLE... CAN A PROBLEM OCCUR WHERE THE THROTTLE WILL GO WIDE-OPEN FOR A FEW SECONDS. THIS SEEMS LIKE A DANGEROUS ISSUE TO ME.

NHTSA complaint #10187257 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I AM EXPERIENCING THROTTLE LAG ON MY 2007 YAMAHA YZF R-1 MOTORCYCLE. WHEN I AM IN 2ND GEAR AND AT 48 MPH WHEN I TWIST THE THROTTLE THERE IS A DELAY IN POWER DELIVERY, AND THEN ALL OF A SUDDEN IT TAKES OFF. IT ONLY HAPPENS IN THAT SITUATION. IT WORKS FINE IN ANY OTHER.

NHTSA complaint #10187085 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

2007 YAMAHA YZF-R1 HAS AN ACCELERATION LAG IN SECOND GEAR WHEN TRYING TO ACCELERATE FROM 5,500 RPM. ACCELERATION FROM LESS RPM, OR MORE THE LAG IS NOT PRESENT, BUT IT IS ALWAYS PRESENT IN SECOND GEAR AT 5,500 RPM. WHEN THIS LAG OCCURS IT IS PRESENT FOR SEVERAL SECONDS BEFORE THE BIKE WILL ACCELERATE. WHEN IT DOES START TO ACCELERATE, IT IS A SLOW SOFT ACCELERATION REGARDLESS OF THROTTLE INPUT. IT SEEMS TO ME THAT IN THIS CASE YOU DO NOT HAVE FULL CONTROL OVER THE MOTORCYCLE, WHICH IS VERY DANGEROUS AND LIFE THREATENING TO THE RIDER AND TO THOSE AROUND (PEDESTRIANS, CARS). AT THIS TIME I HAVE NOT NOTICED ANY OTHER FAULTS IN THE DRIVE BY WIRE THROTTLE, BUT THIS PROBLEM IS SCARY. WHAT IS TO SAY THAT THE THROTTLE WILL STAY OPEN WHEN YOU DO NOT INTEND? THIS IS AN ISSUE THAT NEEDS TO BE ADDRESSED IMMEDIATELY. MOTORCYCLE WAS PURCHASE NEW ON 3/3/07 AND THIS ISSUE WAS DISCOVERED ON 3/4/07 WITH 62 MILES ON THE BIKE AT FIRST OCCURRENCE. AS OF 4/4/07 BIKE HAS 669 MILES AND THIS ISSUE IS STILL PRESENT. IT WILL HESITATE ON EVERY ATTEMPT. DEALER IS AWARE AND WILL INSPECT ON THE BIKES FIRST SERVICE IN ONE WEEK.

NHTSA complaint #10187067 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

2007 YAMAHA R1- THE OTHER DAY I WAS IN RUSH HOUR TRAFFIC ON MY MOTORCYCLE. I WAS DRIVING AT APPROXIMATELY 45 MPH IN SECOND GEAR WHEN THE CAR NEXT TO ME BEGAN TO MERGE OVER ON ME. I TRIED TO ACCELERATE TO AVOID A COLLISIONS BUT MY BIKE DID NOT IMMEDIATELY RESPOND TO THE THROTTLE. FORTUNATELY I WAS ABLE TO MANEUVER OUT OF THE WAS OF THE MERGING VEHICLE.. THE LAG IN THE THROTTLE RESPONSE SEEMED VERY STRANGE TO ME SO I DECIDED TO TEST THE BIKE BY RECREATING THE SCENARIO. MY FINDING WERE, IF I RIDE THE MOTORCYCLE IN 2ND GEAR AT APPROXIMATELY 48 MPH (5500 RPM) AND TRY TO QUICKLY ACCELERATE (IE- TO AVOID A COLLISION,,,ETC), THE BIKE WILL LAG AND ACCELERATE SLOWLY. THIS DEFECT WAS CONSISTENT EACH TIME I TESTED THE BIKE. ALL OTHER GEARS AND SPEEDS, ACCELERATION WAS PERFECT. BEFORE CONTACTING THE DEALERSHIP ABOUT MY PROBLEM, I DECIDED TO DO SOME RESEARCH ONLINE. I DID A GOOGLE SEARCH FOR 2007 YAMAHA R1 LAG, AND TO MY SURPRISE, I GOT COUNTLESS RESULTS ON THE TOPIC. APPARENTLY THE ISSUE IS FOUND IN ALL 2007 YAMAHA R1S IN THE U.S. NOW, BEING AN EXPERIENCED RIDER, I CAN SURLY SAY THAT 40 TO 50 MPH ARE VERY COMMON SPEEDS FOR A MOTORCYCLIST WHO TRAVELS CITY STREETS. AND ITS A FACT THAT ACCELERATION ALONG WITH PROPER BRAKING AND MANEUVER ABILITY, ARE KEY COMPONENTS TO RIDING A MOTORCYCLE AND AVOIDING LIFE THREATENING SITUATION WHILE IN TRAFFIC. THE YAMAHA WEBSITE CLEARLY STATES,,,THE YZF-R1 USES THE YCC-T FLY-BY-WIRE THROTTLE SYSTEM FOR FLAWLESS RESPONSE UNDER ALL CONDITIONS. YAMAHA CHIP CONTROL THROTTLE CONTROLS A 32-BIT ECU FUEL INJECTION SYSTEM FOR SUPER-RESPONSIVE, SMOOTH, INSTANTANEOUS POWER DELIVERY. THIS IS FAR FROM TRUTH AND YAMAHA NEEDS TO ADDRESS THIS ISSUE.

NHTSA complaint #10186940 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

WHEN RIDING IN SECOND GEAR AT APPROXIMATELY 5500 RPM, AND HITTING THE THROTTLE YOU GET NOTHING, NO ACCELERATION FOR A GOOD 2 SECONDS. HAD HEARD ABOUT OTHERS HAVING THIS PROBLEM BUT I HADN'T EXPERIENCED IT UNTIL TODAY. NOTHING WAS DONE TO CORRECT THE FAILURE. AS A MATTER OF FACT , UPON FURTHER READING, YAMAHA HAS DOWNRIGHT IGNORED THIS PROBLEM AND THEIR CUSTOMER BASE BY NOT FIXING IT OUTRIGHT ON EVERY BIKE AFFLICTED BY THIS PROBLEM.

NHTSA complaint #10186952 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

I WAS RIDING MY MOTORCYCLE ON THE HIGHWAY WHILE I CAME UP BEHIND A CAR IN THE RIGHT LANE. THE SPEED LIMIT IS 65 MPH AND THE CAR WAS DOING 50 MPH IN 2ND GEAR. I DECIDED TO PASS THE CAR IN THE LEFT LANE. I SIGNALED TO GET INTO THE LEFT LANE CHECKED MY MIRRORS AND STARTED TO MOVE OVER AND AT THE SAME TIME ACCELERATE. FOR SOME REASON IT FELT LIKE THE MOTORCYCLE TURNED OFF. THERE WAS NO ACCELERATION FOR ABOUT 2 SECONDS. I WAS LUCKY THAT THERE WAS NO CARS IN THE LEFT LANE. AFTER ABOUT 2 SECONDS THE BIKE ACCELERATED AS NORMAL. I LOOKED UP THE INFORMATION ONLINE ABOUT THIS ISSUE AND I FOUND OUT THIS PROBLEM IS COMMON FOR ALL THE 2007 YAMAHA R1'S IN THE USA. I HAVE ALREADY DUPLICATED THIS PROBLEM OVER 10 TIMES IN SECOND GEAR AT 5500 RPM'S.

NHTSA complaint #10186643 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I HAVE RECENTLY PURCHASED THE 2007 YAMAHA YZFR1 AND HAVE SOME CONCERNS REGARDING THE SAFETY OF THIS VEHICLE. FIRST OFF I WOULD LIKE TO REPORT THE ISSUE OF A FLAT SPOT IN ACCELERATION. WHEN THE VEHICLE IS AT APPROXIMATELY 5500 RPM AND THROTTLE IS APPLIED THERE IS A DELAY IN ACCELERATION LASTING BETWEEN 3-5 SECONDS. THIS DELAY COULD CAUSE INJURY OR POSSIBLE DEATH DUE TO ACCIDENTS OCCURRING WHEN ACCELERATION IN THIS RANGE IS NECESSARY. THE SECOND ISSUE IS WITH THE REAR SET (FOOT PEGS). ALTHOUGH THIS HAS NOT OCCURRED ON MY VEHICLE, THERE HAVE BEEN CASES OF THE SET CRACKING AND BREAKING. IF THIS WERE TO HAPPEN WHILE THE VEHICLE WAS IN MOTION IT CAN CAUSE INJURY OR POSSIBLE DEATH.

NHTSA complaint #10186550 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

WHILE DRIVING IN RUSH HOUR TRAFFIC I OBSERVED A CAR BEHIND ME WAS APPROACHING FAST. I ROLLED ON THE THROTTLE TO ACCELERATE , AND NOTHING HAPPENED FOR ABOUT THREE SECONDS. THEN BIKE BEGAN TO SLOWLY ACCELERATE AND I WAS ALMOST REAR ENDED BECAUSE OF THIS DEFECT. WELL, I WAS ALMOST REAR ENDED BECAUSE THE DRIVER BEHIND ME WAS NOT PAYING ATTENTION. BUT THE BIKE'S DEFECT COULD HAVE KILLED ME. YAMAHA CONTINUED TO IGNORE THIS DEFECT BY SAYING THAT THEY HAVE NOT HEARD OF THIS BEFORE. THIS WAS A LIE, AND COULD BE PROVEN. YAMAHA KNEW OF THIS DEFECT AND CHOSE TO COMPLETELY IGNORE IT. NOT ENOUGH DEATHS YET?

NHTSA complaint #10186438 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

NO POWER IN 2ND GEAR AT 5500 RPM COULD CAUSE ACCIDENT WHEN ROLLING OUT OF A 45 TO 50 MPH CURVE NOTHING HAS BEEN DONE YET!

NHTSA complaint #10186432 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

BRAND NEW MOTORCYCLE: 2007 YAMAHA YZF-R1. IN 2ND GEAR AT 5500 RPM, THE ACCELERATION IS LITERALLY GONE NO MATTER HOW MUCH THROTTLE YOU GIVE IT. IT COULD BE A SERIOUS PROBLEM AND CAUSE AN ACCIDENT IF IN A BAD CIRCUMSTANCE WHEN THIS HAPPENS. IT IS RECURRING EVERY TIME AT THAT RPM. IT IS DEFINITELY A MANUFACTURER'S DEFECT THAT MUST BE FIXED!!!

NHTSA complaint #10186289 — an unverified report by a vehicle owner.