New one on me...

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Pistolero, Dec 12, 2013.

  1. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    So my speedometer is only working when I have my clutch pulled in...:huh

    It's an 08 990ADV.

    Anyone encountered this before?... I have found several instances of a speedo crapping out for various reasons but not exactly like this. :ear
    #1
  2. Brendan33c

    Brendan33c Been here awhile

    Joined:
    Apr 23, 2013
    Oddometer:
    110
    Location:
    Christchurch. South Island, New Zealand.
    weird! I can't say what could be causing the speedo to play up, but I know its not unheard of for the speedo to fail. I can see looking back on the records kept here in NZ that my speedo was replaced for the previous owner under warranty after it failed. Suppose that doesn't really help you though as the bike is probably out of warranty now?
    #2
  3. Chuckracer

    Chuckracer Jerkus Maximus

    Joined:
    Aug 26, 2007
    Oddometer:
    9,189
    Location:
    Lowville, NY
    Heh heh...Wow! That's a new one!
    #3
  4. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    WAY out of warranty haha...

    I have seen pick up sensors fail, speedo it's self fail, ABS button fail, plugs and various wiring issues but never this...

    May be time to take this ABS CRAP off all together.

    The only thing I think could be related is a few weeks back I noticed it dropped to zero for a few seconds and then after that all is well... I figured it was a sensor hiccup and moved on.
    #4
  5. bikyto

    bikyto Dans le doute...gaz!

    Joined:
    Jun 15, 2009
    Oddometer:
    2,324
    Location:
    Northern Cali
    Have you checked your ground wires above the water pump/ clutch cover?
    Right side. Two black ground wires bolted in a vertical position directly into the engine casing.

    Mine were loose and it took me weeks to troubleshoot the speedo issues that I was having after checking everything I could think of and taking half of the bike apart.
    I almost gave up :freaky
    #5
  6. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    I recently cleaned and tightened them both. I don't see how it could be a ground because like I said the speedo works fine... just so long as the clutch is pulled in... :becca

    It really does act like a switch... Clutch in... speedo works fine... clutch out... the speedo immediately drops to 0... Stupid bike :lol3...
    #6
  7. bikyto

    bikyto Dans le doute...gaz!

    Joined:
    Jun 15, 2009
    Oddometer:
    2,324
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    Northern Cali
    Who needs a speedo anyway?:lol3 (that's what I was convincing myself of)

    So it's either the Hall effect or the master clutch switch.
    I'm assuming you've tested them both.

    It's a weird one....:huh
    #7
  8. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN

    Agreed... haul ass till you see blinky blue lights... then stop :D...

    Have not had time to do much with it yet... It only started today.

    Of course I'll post if I find what it is.
    #8
  9. crazybrit

    crazybrit Long timer

    Joined:
    Mar 16, 2006
    Oddometer:
    8,592
    Location:
    Portland, OR
    What happens if you disable the clutch switch sensors? Send me a PM with your e-mail if you need the wiring diagram.
    #9
  10. Mikef5000

    Mikef5000 Long timer

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    Apr 17, 2008
    Oddometer:
    2,031
    Location:
    Columbus, OH
    My first thought was a ground issue as well... I'd follow the clutch switch sensor wires and look for an area that may be shorted to another (presumably speedo) wire, and then recheck the final bolt to the frame.
    #10
  11. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    Would the best way to do this be just to unplug the sensor?
    #11
  12. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    Will be giving the wiring a look over tonight and I'll clean the grounds again just to make sure.
    #12
  13. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    Ok had some time to make some progress... I have an alternative ABS kill switch wired in so I can turn it off and leave it off..

    When I let the ABS function normally. I start off and the ABS light goes off as it should... I ride for a while and every thing seems to be working properly...

    intermittently the light will flash on and the speedometer drops to zero for a second... then it comes back. The issue seems to no longer be related to the clutch.. :huh
    Everything works properly most of the time like this. It only acted up a few times like this.

    I then turned the bike off and engaged the permanent kill switch. When I started the bike and set off this time the speedo stayed at zero regardless of the clutch. :muutt

    So I'm going to take a look around for damaged or loose wiring related to my switch but I guess it could still be the front sensor or the factory ABS button going...

    I'm for sure going to see what it would cost me to get rid of this shit ABS system anyway...
    #13
  14. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    Further testing has shown me that every now and then the ABS light will flash and the speedo will go to zero, however it does not flash with any kind of pattern.

    I'm sure it is some loose wire somewhere.

    I also found that my low beam is blown (bulb has less than 100 miles and no I didnt touch it with my hands) but my horn still works. I could not catch it in time to try my horn while the speedo was reading zero.
    #14
  15. brents347

    brents347 Trusting my Cape...

    Joined:
    Mar 5, 2006
    Oddometer:
    4,391
    Location:
    Where the hell is Truckee, CA?
    Just an observation, but I don't think you should be doing any more wiring!
    #15
  16. Dustodust

    Dustodust Long timer

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    Oct 9, 2009
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    Location:
    Hillsboro Oregon
    this sounds a lot like like loose battery terminals
    #16
  17. BigNastybrp

    BigNastybrp Big Nasty

    Joined:
    Dec 18, 2007
    Oddometer:
    696
    Location:
    high speed boogie land, Sunny Ca.
    broken wire where the three wires come out of the sleeve for the pick up on the fork tube right under the triple clamp. cheap fix and very common. its in the HOW
    #17
  18. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
    714
    Location:
    TN
    I really appreciate your smart ass comment :clap...

    The switch was on the bike when I got it, and has been for 50,000 miles..

    Just an observation, but I don't think you should make any more ignorant comments.

    Thanks!:fyyff
    #18
  19. Pistolero

    Pistolero W. F. O.

    Joined:
    Mar 27, 2011
    Oddometer:
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    Location:
    TN
    Thank you for your input :freaky

    I'll check this out tomorrow!

    I hope that's all it is.
    #19
  20. bikepsych

    bikepsych Been here awhile

    Joined:
    Feb 2, 2010
    Oddometer:
    352
    Location:
    Gold Coast of California
    Pistolero,
    What did you find with your speedo? Mine acted weird yesterday morning on my way to work. Was all over the place, 145-0-92-40-75-2 within about 5 seconds . This went on for about 4 miles then all was well. Have been keeping an eye on it but nothing else weird.

    However, it was VERY cold yesterday morning. It must have gotten down to 42 so maybe that had something to do with it.

    BG
    #20