Dies at stops.

Discussion in 'Mechanics Garage' started by Ronnie O, Apr 1, 2017.

  1. Ronnie O

    Ronnie O New Member

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    Hey everyone:
    I just went out for my first long ride of the season after my winter time valve adjust on my 06 vfr V-tech.
    After my first ride I noticed that it dies when I came to a stop for the first few stops . I didn't think too much about it till today when it did it again on my ride. I figured it might have been because the engine was cold but today it did it when hot too. On some occasions it did not want to re start right away.
    The bike runs great otherwise and doesn't do it all the time ,most of the time it doesn't.
    It idles fine otherwise and the valve clearances were good from the previous adjustment.
    Any ideas? Must have something to do with the fuel injection? Possibly a wire or hose not connected?
    I have a K&N filter that I cleaned and re-oiled. Wonder if that had anything to do with it?
    Also I had to tap on the screws that hold on the intake funnels as the head's were stripping to get them off. Doesn't look like there was any damage but I wonder if I threw something out of wack? It didn't do it on the way back. Maybe it's nothing ,fixed itself?
    Also is a running temp in the 200's, ( 217 to 220 )on a back road ride normal on a high 70's to low 80's day?
    Looking at other threads this is normal as these bikes run hot.
    Looks like a lower temp sensor and a manual switch would be good easy fixes.
    What would be the best way to wire in a switch and where can I find the sensor?
    Thanks for any info, Ron.
     
    Last edited: Apr 2, 2017
  2. RllwJoe

    RllwJoe Insider

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    Have you found any solutions yet?
     
  3. Ronnie O

    Ronnie O New Member

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    Not yet. I need to take it out again hopefully the computer reset itself and it went away.
    I'll keep you posted.
     
  4. Ronnie O

    Ronnie O New Member

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    Also I wonder if oiling the K&N is sending a false signal to a sensor and shutting it down? ?
    Something to consider.
     
  5. Terry Smith

    Terry Smith Member

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    The only sensor that might be affected is the inlet air temp as it sits in the floor of the air box right below the filter. Easy enough to access and clean. Otherwise is the FI light on when running? I've screwed up reassembly and forgot to connect the MAP sensor hose and my 5G didn't like that with low power and a rough idle. There is a diagnostic code reading method if you do get an FI fault that makes fault finding fairly easy.


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  6. RllwJoe

    RllwJoe Insider

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    Is it possible that you have too much oil on the K&N?
     
  7. EricTrant

    EricTrant New Member

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    My '06 did that, like it was hit with a killswitch. It was a recall from Honda on one of the wiring harnesses. Other symptoms were headlights were not working and would not start, but after a while it'd start up (as if cooling it helped or some such). Fuel pump would not kick on when I keyed bike on, prior to start. Bike ran great once it started, then died as if I'd hit the kill at random times.

    http://www.vfrdiscussion.com/index.php?/forums/topic/35937-safety-recall/

    It was a fire hazard, so if you have not already fixed it, verify it is fixed at least. Honda fixes for free, so at least get it done if this is on the recall list, even if that is not the issue. My harness was burnt through, could have flamed up on me.
     
  8. duccmann

    duccmann Member

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    That seems high, could your radiator cap be goin?
    Very inexpensive.
    My 02 did the same thing (stall) when I first bought it 6 years ago, bumped up the idle and hasn't done it since
    Good luck


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    Last edited: Apr 29, 2017
  9. RllwJoe

    RllwJoe Insider

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    I agree with duccmann, check or replace the cap.

    The coolant should be replaced every other year, so if it hasn't been done, I would flush the system until you have no sediment or "floaties" coming out.
    I've used a 50 /50 mix of white vinegar and water to flush. It is an inexpensive mix, and works well.
    I had to flush mine three times before it came out clear.

    When you refill, use a premixed coolant, or buy some distilled water to add to a half gallon of full strength coolant.
     
  10. Ronnie O

    Ronnie O New Member

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    Thanks for your replies.
    I'll try a new cap on the radiator (a quick and easy fix). A few years back when I did my first valve adjust I thought that I filled up the reserve bottle but after awhile I noticed it was empty.
    So I topped it off and kept my eye on it. The level went down a little but not much after that . I thought that there might have been air in the system. Just the usual rise and fall when hot and cold after that. But I have noticed that the coolant was bubbling when hot some times. Not so much lately but it does seem to run hot. The cap would probably be the cause from heat escaping into the tank and loosing pressure.
    As far as the dying at stops I need to ride it some more and get back to you.
    Like I said originally it runs great, starts right up idles fine and no fuel injection light.
    I changed the coolant when I do the valve adjust àbout every other year.
    I would like to check the balance on the throttle bodies. That may have something to do with it? It hasn't been done since I've owned it.
    Do you guys believe in using bike specific coolant or water wetter or super cool or just regular car antifreeze, mixed of course.
    Thanks, Ron.
     
  11. Ronnie O

    Ronnie O New Member

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  12. Ronnie O

    Ronnie O New Member

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    Hey guys.
    My bike still dies occasionally when coming to a stop.
    It doesn't do it all the time but often enough!
    Thought it fixed itself because it doesn't happen every time.
    Last time on my way home when I slowed to take a slow turn.
    Annoying to say the least!
    No fuel injection light coming on.
    Since it wasn't doing it till I adjsted the valves I think it might have something to do with the hoseS or reconnection of something.
    I had to tap on the snorkel screws to loosen them. But everything looked ok at the throttle bodies. Maybe I threw something out of wack.
    I'll try balancing them out and looking to see if anything didn't get hooked up properly.
    Any ideas?
    Also is it worth disabling the flapper valve and removing snorkel at air box?
    Thanks,Ron.
     
  13. RllwJoe

    RllwJoe Insider

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  14. Diving Pete

    Diving Pete Member

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    You mentioned that your computer reset itself.

    This can occur when:

    the batt voltage is low,
    faulty earthing block (left front panel)

    My gut feel is time to check:

    1. Battery - think its on its way out
    2. Reg & recifier
    3. Stator

    In other words - do the DRILL..

    My reasoning is:

    the bike just dying...

    If your battery hasn't enough volts the ecu cannot open the injectors - think it needs 10.8v to fire them.
    As your computer resets itself, this is a sign of batt not having enough volts.

    That should keep you busy tomorrow.
     
    mello dude and skimad4x4 like this.
  15. Ronnie O

    Ronnie O New Member

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  16. Ronnie O

    Ronnie O New Member

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    Thanks for the imput.
    When I said computer reset I meant that hopefully it would reset itself by itself. But I guess that was not realistic.
    I would think the battery is fine as it always starts rt.up and hasn't show any weekness.
    I'll try to turn up the idle a bit.
    Maybe it's a little low.
    Like I said before though it's idles fine and no FI light.
    Doesn't do it that often that's why I was hoping it fixed itself.
    If the idle adjust doesn't fix it I'll look under the tank and make sure all the hoseS are connected properly etc.
    I also want to balance out the throttle bodies.
    Thanks.
     
  17. Diving Pete

    Diving Pete Member

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    Do you have a voltmeter installed?
    I'm assuming no.

    What is your idle speed?
    If it is 1300ish when warm then you do not need to touch it.

    Does the bike die when warm or cold?
    Suspect warm.

    What is your current millage?

    How old is the battery?

    When did you last charge it ?
     
  18. Ronnie O

    Ronnie O New Member

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    My battery is not that old about 4 yrs. I always keep it on a trickle charge .
    The bike does not loose electrical power.
    I think/hope it's just the idle speed. I raised it up to 1300 when warm, it was a little low.
    I'll keep you informed.
     
  19. Ronnie O

    Ronnie O New Member

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  20. Diving Pete

    Diving Pete Member

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    Battery's on a motorbike have a really hard life, I've had batts die in 12 months & some last 7. Doesn't matter either if you tender them or not, doesn't matter if they cheap or expensive..

    test it.
    If you have it on a tender you may have the volts - but not the amps..
     
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