2007 YAMAHA YZFR1 Engine And Engine Cooling Problems

TL* THE CONTACT OWNS A 2007 YAMAHA YZFR1 MOTORCYCLE. THE CONTACT STATED WHEN DRIVING THERE WAS AN ABNORMAL TICKING COMING FROM THE VEHICLE. THE MANUFACTURER ADVISED THAT THE NOISE WAS NORMAL. THE CONTACT STATED THE NOISE PROGRESSED AND THE VEHICLE WOULD SPORADICALLY BACKFIRE WITH LIMITED POWER AND PRESSURE. THE CONTACT BELIEVED THE FAILURE TO BE CAUSED BY THE VALVE STEM WHICH WAS PLACED INCORRECTLY AND COULD POTENTIALLY BREAK. THE VEHICLE WAS NOT REPAIRED AND THE CONTACT WAS NO LONGER DRIVING THE VEHICLE. THE FAILURE AND CURRENT MILEAGE WAS APPROXIMATELY 7,000.

HAS EXTREME THROTTLE LAG IN SECOND GEAR AT AROUND 5500 RPM. PROBLEM ISN'T PRESENT EVERYTIME, BUT CAN BE DUPLICATED BY PUTTING THE BIKE INTO SECOND GEAR AND STAYING AT 5500 RPM FOR 1 TO 2 SECONDS AND THEN APPLYING GENEROUS THROTTLE. A LAG USUALLY AROUND 3 SECONDS AFTER POWER APPLICATION CAN BE FELT. IT HAS CAUSED ME TO ALMOST BE INVOLVED IN 2 ACCIDENTS DUE TO THIS ISSUE. AT THAT RPM AND GEAR SETTING THE BIKE IS UNSAFE DUE TO THE LACK OF THROTTLE RESPONSE AND CAN CAUSE AN EXTREMELY UNSAFE SITUATION ON THE PUBLIC ROADS FOR NOT ONLY THE MOTORCYCLIST BUT FOR OTHER MOTORISTS AS WELL. *TR

I RECENTLY PURCHASE A 2007 YAMAHA YZF R-1. UNDERSTANDINGS IT IS THE FIRST YEAR YAHMAHA USES THIS TECHNOLOGY ON THE R1S WAS A CONCERN. BUT I BOUGHT IT ANYWAY. MY FEARS CAME TRUE WHEN MERGING ONTO FREEWAY. THE BIKE HAS A DANGEROUS THROTTLE LAG IN 2ND GEAR AT 5500RPMS (45MPH). THIS IS AN UNSAFE SITUATION ON ANY VEHICLE BUT ESP A 2 WHEEL MOTORCYCLE. APPARENTLY THERE IS NO FIX FOR THE PROBLEM AND YAMAHA IS NOT PLANNING A RECALL DESPITE KNOWING OF THE HAZARDOUS POSITION IT HAS PLACED ITS CUSTOMERS IN. *TR

WHILE TAKING MY 2007 YAMAHA R1 IN SECOND GEAR TO 5500 RPMS. ONCE I OPEN THE THROTTLE, THE BIKE DOES NOT RESPOND FOR A SECOND OR TWO. BUT IF I TAKE THE RPMS TO 5000 OR 6000 THE RESPONSE IS IMMEDIATE. THIS HAS HAPPENED TO ME SINCE THE DAY I RODE THE BIKE OFF OF THE DEALERS LOT. I HAVE NOT BEEN ABLE TO YET FIX THE PROBLEM. *TR

2007 YAMAHA YZF-R1 SUPER SPORT MOTORCYCLE. THERE IS A CONSTANT FAILURE MODE IN THE ENGINE MAPPING THAT CAUSES SLOW ENGINE ACCELERATION IN THE FOLLOWING CONDITIONS: 2ND GEAR, 5500 RPMS. THIS CONDITION CAN BECOME A SIGNIFICANT SAFETY ISSUE WHEN MANEUVERING IN HEAVY TRAFFIC, OR EXPECTING ENGINE POWER TO HELP STAND THE MOTORCYCLE UP AFTER A TIGHT TURN. AFTER CONTACTING YAMAHA, I WAS TOLD THAT THE ENGINEERS HAS EVALUATED THE CONDITION AS A CHARACTERISTIC OF THE MOTORCYCLE AND NOT A SAFETY ISSUE. YAMAHA HAS NO PLANS TO CORRECT THIS ISSUE.

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. *JB

THE MOTORCYCLE HAS STALLED ON SEVERAL OCCASIONS, WHEN SLOWING DOWN WITH THE CLUTCH ENGAGED. *JB