2007 Yamaha YZFR1: hesitation when accelerating

Filed May 1, 2007 · Acceleration, Electrical · 30 miles · CA

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.

Filed Apr 12, 2007 · Fuel system · FL

I know in fact I'm not the first to make a complaint regarding an issue that I have on my 2007 yamaha yzf r1 motorcycle. The following is the best description I can give for a throttle lag problem in the 2nd gear at approximately 5000-5500 RPM. The motorcycle will not respond to the throttle opening and hesitates for approx. 2 seconds before it will accelerate. I for one think this is very dangerous especially during interstate riding when the need to accelerate rapidly exists. At this point yamaha hasn't responded to the problem and I am a member of r1 forum.com and the majority of owners of the 2007 model has experienced. I am hoping that the federal safety agency can help with this problem that yamaha refuses to correct and hopefully get a recall issued. Any help with this matter would truly be appreciated.

Filed Apr 11, 2007 · Acceleration · 50 miles · FL

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

Filed Apr 4, 2007 · Acceleration · 67 miles · FL

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.

Filed Mar 24, 2007 · Acceleration · 50 miles · NM

Throttle hesitation when accelerating.

Filed Mar 19, 2007 · Engine · 1 miles · MD

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.

Filed Feb 28, 2007 · Acceleration · OH

Tl*- the contact stated that while driving the 2007 yamaha yzfr1 at 4 MPH, and attempting to accelerate faster the motorcycle hesitated for a couple of seconds then eventually accelerated slowly. The motorcycle had an acceleration problem each time itwas driven. The motorcycle had been taken to a dealer, who confirms the problem existed, and stated that there was no remedy for the failure. The current mileage was 230 , and the failure mileage was 0.*ak the consumer stated the problm only happened in second gear. Updated 04/05/07.