Stumbling and surging

Discussion in '7th Generation 2010-Present' started by chainedlightning, Jun 26, 2012.

  1. alexdig

    alexdig New Member

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    The bike had the same issues reviewed in this thread.

    1. The throttle was adjusted.
    2. The ECU was re flashed
    3. New Spark plugs were put in...although i'm not sure if this was done to help the stumbling or the stalling issue I was experiencing

    Markham Outdoor Power was the place that did the work...in conjunction with Honda Canada that re-flashed the ECU and did the throttle adjustment.
    Phone number is 1905-294-2355

    Hope this helps.
    I have not experienced the issue since the work was done.
    ALmost 4,000 km's
     
  2. VFR joe

    VFR joe New Member

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    it could. My CB acts similarly, stumbling and falling on its face, if I don't simply let it idle for a little bit.
    driving off immediately after starting, seems to aggravate it.
     
  3. CBRent

    CBRent New Member

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    Add me to the list of 2010 VFR1200 owners with this issue. It did *exactly* the same thing as described. It stumbled, so I gave it more throttle, them ZOOM. When I pulled over it was idling at 1500 RPM.

    This is the first time it has happened. I rode the VFR from New Hampshire to Seattle and back last year without any trouble. Now this. Boo!

    I'll call the number and report it to Honda on Monday. I'm not going to fool with the techs at my local Honda Powersports dealer. They never fail to disappoint me.

    Maybe I can score a 2011 or 2012 CPU from eBay UK that comes off a rashed bike?

    Brent
     
  4. HMG124

    HMG124 New Member

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    I'm on my way to buy a used 2010 tomorrow from a kawasaki/aprilla dealer that took it on trade. I suppose there is no way in a test ride that I can check this bike out for this?

    Has there been any more information on lemon laws, or Honda America?

    Thanks
    Brad
     
  5. New2010VFR1200Owner

    New2010VFR1200Owner New Member

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    My bike is at Tampa PowerSports and has been for a week. If they can't find the problem I am getting rid of this 2010 VFR1200. Great bike and I love it but it is not safe. I have 9000 miles on it and it has done the stumbing and surging trick about 8 times overall (first time at about 4000 miles). I will post my results here on the forum.
     
  6. crakerjac

    crakerjac New Member

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    Bike did something very similar this weekend.

    I started up the bike and almost immediately put the bike in gear to bring the bike up to the house from the machine shop. I started letting out the clutch and the bike died. Afterwards it did NOT want to start. I'd let off the started and the bike made a very strange noise. It almost sounded like a blow off valve on a turbo motor. Did this each time I tried to start the bike (about 3 times). On the 4th try, the bike started and I had to give it quite a bit of throttle. After a nice helping of throttle, the problem seemed to correct itself and ran fine afterwards.

    From what I understand, the O2 sensors in this bike are crap and are really only used when the bike is cold and <20% throttle input. From what I've read, PCV supplies dummy O2 sensors... Has anybody tried replacing the O2 sensors (either with a dummy resistor or a better sensor)?
     
  7. New2010VFR1200Owner

    New2010VFR1200Owner New Member

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    crakerjac,
    Your problem does not sound like what happened to me. I would put your bike in the shop and see if any codes popped up. I just got mine out. They were unable to duplicate the "stumbling and surging" symptom so I pretty much wasted the diagnostic charge. But they only put 19 miles on the bike trying to get it to happen. I can ride it hundreds before it happens. It didn't happen to me the first time for over 4K miles. All they did was reload the ECU on the recommendation of Honda. But now the issue is documented with Honda and I'll just have to keep at it. Hopefully it won't happen when a semi truck (or even a geo metro) is right behind me.
     
  8. cornerexit

    cornerexit New Member

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    perfect reason to flash the ecu, mount a PCV/auto tune module and leave this issue in the wind.
     
  9. Natevit

    Natevit New Member

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    I have the same issue with my stock 1200f.
    If you hang around the 3k mark, even for a short time (IE stuck behind a slow car in 2nd gear) the engine will occasionally stumble when you role on the gas. I have even had it stall.
    Sometimes as it stumbles it will all the sudden take off like a bat out of the well known hot spot.
    The only thing i could do is pull in the clutch, rev it a couple times, then proceed as if nothing happened.

    Previous posts have pointed out a Honda recognized mapping issue that there may or may not be a fix for in the US.

    All this to say it might not be the Z-Bomb
     
  10. VFRKEN

    VFRKEN New Member

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    Add me in :

    2010 1200F , had the same issue's mentioned here on more than one occasion now , worked through them and would lurk around here and VFRD waiting to see how things were progressing , till recently it occurred while headed down a 2 lane sweeper down hill with a dump truck right behind me and a cop to my right , as the bike started to stumble and cut out the dump truck being right behind me and headed down hill as well was rolling up on my slowing bike fast , coaxing my bike to respond with wild throttle position changes I was able to get my bike to respond , to the point where I got front wheel lift and took off like the start of a superbike race , well apparently the cop didn't like that or believe my story , not to mention I was asked why I would ride this bike if it had such an inherent problem .....

    Good point

    Ken
     
  11. ytvfr

    ytvfr New Member

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    Hi VFRKEN,

    Did you report this to your dealer?

     
  12. VFRKEN

    VFRKEN New Member

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    ytvfr , I must admit I have not , from reading post's on this topic here and elsewhere I didn't feel there would be much if any benefit in doing so , but please correct me if I'm wrong .....
     
  13. ytvfr

    ytvfr New Member

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    Well from the stand point of making Honda recognize that some bikes are having some serious safety related problems it makes good sense to make Honda aware that your bike is having this problem.

    As of yet there doesn't seem to be a silver bullet so to speak to fix the issue. :(
     
  14. lear 31a

    lear 31a New Member

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    I was planning on heading down to the dealer tomorrow and trade for a brand new 2010.
    Not sure if I want to mess with it now. Gut is telling me to go elsewhere (BMW).
     
  15. VFRKEN

    VFRKEN New Member

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    I can see value in that , I'll be making an appointment !
     
  16. VFRKEN

    VFRKEN New Member

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    Personally I think it would be your loss if you didn't buy it , but that's just me , this bike has been one of the best most pleasurable bike I've owned to date , on top of that , I have yet to go to any bike forum , buy any bike , or know of any bike without some type of issues , plus its been so in frequent I certainly wouldn't let it deter you from buying , I really think you'd be missing out .... imho
     
  17. mlloyd

    mlloyd New Member

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    Lear 31 A....Run, run far away as fast as you can.
     
  18. lear 31a

    lear 31a New Member

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    Thanks Ken. I have owned several Hondas (exclusively Honda in fact) and am saddened by the reports of Honda's response I am hearing. I may do it anyway. What a great resource this forum is.
     
  19. lear 31a

    lear 31a New Member

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    Just wondering if any of the 2013s have this issue...they'll be marking those guys down soon to make room for the 14s...maybe?
    I work in the aviation industry and we seem to shy away from first or early serial numbers due to this reason.
    The ride from pure bliss and two wheeled ecstasy to "ah crap" is a long one.:cool:
     
  20. ytvfr

    ytvfr New Member

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    Lear,

    I cannot say this with certainty, however I've yet to hear any 2012/2013 owners experiencing these symptoms if that is worth anything :)
     
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