[ice_burg]

Hey everyone. I had to take my CBR into the shop Friday evening. Despite clutch adjustments and different tanks of fuel from different places etc, I am experiencing cut-outs when at high speed and and high rpm. Like when I am merging onto the interstate etc.. It will cut out and keep accelerating and then cut out again and keep going.. Seems electrical to me as it only does it after the bike has been ridden for a 15 or 20 minutes prior.. Dropped it off Friday hope to hear something in the next day or so.

 

[TX_Dj]

Interesting. Let us know what the issue turns out to be. I'm with you on electrical, wondering if it's ignition or fuel pump related or what. I'm sure they'll get it sorted, though.

 

[somebody5788]

I've felt it once or twice but nothing serious. Curious to know what happens.

 

[ice_burg]

I've felt it once or twice but nothing serious. Curious to know what happens.

Good to know I am not the only one with the issue.

 

[somebody5788]

Good to know I am not the only one with the issue.

For me it's under slower acceleration but a decent load (up hill) it just misfires once or twice but I've again only had that happen like twice.

 

[furious_blue]

sounds like it may be fuel delivery (lack of).. pinched tube or blocked vent somewhere, clogged filter ? I'll be curious to know what it actually turns out to be...

 

[Jme250RA]

this is the same problem i posted about a couple of weeks ago. it only happened twice within a couple of minutes but hasn't shown up again. keep us posted.

 

[llory]

airbox blocked?

 

[ice_burg]

Called the shop today. Said they have checked all of the usual culprits and found nothing yet. They are planning to hook it up on the dyno and test from there. That's all I know.


Sent from my iPhone using MO Free

 

[ice_burg]

Update:
Stopped by the shop today and my bike was on the Dyno. They were testing it as best they could to replicate the conditions I have explained to them when the issue happens. So far they have not been able to replicate it. They asked to keep it one more day. I expect to hear something this afternoon. Either "Come and get it we can't find anything wrong" or "We think we fixed it" We shall see. I did find out that on the dyno the bike will do 102MPH before the Speed limiter kicks in. Not the rev limiter.

 

[Jme250RA]

interesting! i had no idea there was a speed limiter on this thing. if that is the case and these bikes are limited to 100 mph/160 kph, that would make perfect sense as that was around the speed i was doing when i had it happen. the only problem with that scenario is that i've had my bike up to 168 kph indicated without it cutting out.

 

[sendler]

I did find out that on the dyno the bike will do 102MPH before the Speed limiter kicks in. Not the rev limiter.

Theoretical speed at 10,500 is 105 mph 170 kph. Maybe you were seeing the rev limiter along with some tach error and speedo error. Other people have posted speeds of 178 kph at redline with %8 speedo error while going down hill.

 

[ice_burg]

Theoretical speed at 10,500 is 105 mph 170 kph. Maybe you were seeing the rev limiter along with some tach error and speedo error. Other people have posted speeds of 178 kph at redline with %8 speedo error while going down hill.

All I can tell you is what I saw. Maybe it is SpeedO error. I dunno.

 

[ice_burg]

OK, I have the bike back. I noticed on the drive to the shop that the cut out was not occurring. Which didn't mean anything because I could not make it do it every single time anyway. It seemed rather random. They kept the bike for a full week and dyno'd it and tested it on the street as well and could never get the thing to hiccup. I stopped in while the bike was on the dyno and asked if I could "ride" it to see if it was something I was doing. They agreed and I hopped on went through the gears, everything is up to temperature and nothing...not one single hiccup whatsoever. They were going to document the issue and said they would notify the regional service guy as well to let him know in case it was needed later. So there ya have it.. Since i took it to them not one single thing was done to the bike and the issue never occurred again. If it does in fact happen again I will make a note of everything and report back to them. They suggested I try running a higher octane fuel in it regardless of what the manual says.. I have yet to do this.

 

[mattcbr250]

OK, I have the bike back. I noticed on the drive to the shop that the cut out was not occurring. Which didn't mean anything because I could not make it do it every single time anyway. It seemed rather random. They kept the bike for a full week and dyno'd it and tested it on the street as well and could never get the thing to hiccup. I stopped in while the bike was on the dyno and asked if I could "ride" it to see if it was something I was doing. They agreed and I hopped on went through the gears, everything is up to temperature and nothing...not one single hiccup whatsoever. They were going to document the issue and said they would notify the regional service guy as well to let him know in case it was needed later. So there ya have it.. Since i took it to them not one single thing was done to the bike and the issue never occurred again. If it does in fact happen again I will make a note of everything and report back to them. They suggested I try running a higher octane fuel in it regardless of what the manual says.. I have yet to do this.

Mine misfired during my ride back from OKC. A 1000 mile round trip. I've never had that happen before. So my thinking was bad gas.

 

[ice_burg]

Mine misfired during my ride back from OKC. A 1000 mile round trip. I've never had that happen before. So my thinking was bad gas.

I would think the CEL would come on if it misfired.

 

[TX_Dj]

Only if it was a severe and persistent condition, and then only if the ECU really monitors for that.

 

[ice_burg]

Only if it was a severe and persistent condition, and then only if the ECU really monitors for that.

Valid point. Thinking about borrowing a GOPro to set up and record while i ride to try and catch it.

 

[ice_burg]

Well, the bike has been checked back in to the dealer. After I got it back with no diagnosis I took it out riding after a few days of rain and it is still happening.

 

[roberthood]

****..more of this issue seems to be popping up. There was a dude on youtube that couldn't seem to get his fixed either. He said he had it in the shop 3 times now.