675.cc • Triumph 675 Forum

Speed sensor

Discussion in 'Maintenance & Tweaks' started by g6xer, Feb 13, 2020.

  1. g6xer

    g6xer

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    I've burnt my speed sensor out can it be bypassed??
     
  2. StMarks

    StMarks PTG

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    If it's only a sensor, can't you simply disconnect it (it's not feeding back info to anything ).?
     
  3. Bigmac

    Bigmac

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    The bike won’t start apparently
     
    • Informative Informative x 1
  4. StMarks

    StMarks PTG

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  5. GazP

    GazP

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    Is it a big job to replace?
     
  6. Bigmac

    Bigmac

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    It’s easy job but not when you are in Spain on a trackday
     
  7. GazP

    GazP

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    Bugger
     
  8. g6xer

    g6xer

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    So lookslike you can unplug a speed sensor and run the engine but now it wont idle correctly
    When its warm it will run about 700 rpm but if I blip the throttle it will stall
    I'm a bit stumped now
     
  9. StMarks

    StMarks PTG

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    I wonder if that could perhaps be something unrelated.? Just coincidence.??
    The EXUP valve isn't stuck open perhaps.
     
  10. g6xer

    g6xer

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    Exe up been disconnected but I did damage the cables to it
    We think it might be the fast idle controller now
    Just wont idle
    Going to run it on track tomorrow and see what happens
    The loom is so bad every time I'm under the tank something else breaks
     
  11. g6xer

    g6xer

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    Is it common for the idle stepper motor to just fail??
     
  12. StephenP

    StephenP

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    It's does happen, though run a test via tuneecu and you'll see it move. Had it once where the arm moved it was actually the part it moved that was stuck. Little wd40 and a wiggle to loosen it up.
     
  13. g6xer

    g6xer

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    Unfortunately I'm out at monteblanco so no tuneecu but will start spraying the shit out of everything
    Cheers for the advice though
     
  14. StephenP

    StephenP

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    You'll hear the noise but just watch to see if the arm moves when you turn the key on
     
  15. g6xer

    g6xer

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    Is there anyway in a crash I could of upset the idle speed
    I've pretty much checked everything
    The only thing different is the speed sensor is unplugged
     
  16. Bigmac

    Bigmac

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    I’ve seen throttle position sensors die in a crash
     
  17. StephenP

    StephenP

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    Just had a light bulb moment, check under the sensor at bottom of the airbox, rubber hose attaches there. Has that come off in the crash?
     
  18. g6xer

    g6xer

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    All rubber hoses on a good friend mentioned this right at the beginning I did find a brass nipple with nothing on which we plugged but still no difference 20200214_150016~2.jpeg
     
  19. g6xer

    g6xer

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    Will that stop it from idling??
     
  20. Hi g6xer, sorry to hear you've not got it sorted yet. It was me you talked to in the garage next door, about my son having a spare. Hope you have more luck today !!
     

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