990 Idle recomendation

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Red Herring, Apr 28, 2011.

  1. Martynho

    Martynho No more Chilegringo.

    Joined:
    Mar 16, 2010
    Oddometer:
    454
    Location:
    Hebden Bridge - UK
    Yep, checked them already.

    #21
  2. NW_rider

    NW_rider Adventurer

    Joined:
    Apr 3, 2010
    Oddometer:
    27
    Location:
    Oregon City, OR
    I know this is an old thread, but were you ever able to find a solution to the issue? I'm having a similar experience with my '11 990 Adv. The idle would increase to around 3k-4k rpm, usually during long downhill sections. Instead of slowing when I let off the throttle it keeps building speed and rpm as I'm riding downhill. When the road levels out, I'm cruising at 45 mph (3k rpm) with no throttle input. It happened a few times on a ride last year, then went away until it happened again last weekend.
    #22
  3. Martynho

    Martynho No more Chilegringo.

    Joined:
    Mar 16, 2010
    Oddometer:
    454
    Location:
    Hebden Bridge - UK
    Hi there, sorry for the delay in replying, I was out riding the big girl in Austria :-)

    The problem turned out to be a faulty throttle position sensor (TPS) I replaced both an it sorted itself out fine. Let me know how you get on mate
    All the best - Martyn
    #23
  4. NW_rider

    NW_rider Adventurer

    Joined:
    Apr 3, 2010
    Oddometer:
    27
    Location:
    Oregon City, OR
    Thanks Martyn! I'll start with the TPS.
    #24
  5. rattis

    rattis Long timer

    Joined:
    Apr 3, 2010
    Oddometer:
    2,821
    Location:
    East of the seas of Kattegat
    Ihad a problem on my -07 with intermittent high idle, up to 3-4 k rpm.
    I turned out that some shade tree mech had "adjusted" the stepper motor causing to get "stuck" once i a while causing my high idle.
    A bit expensive as the mothership does no sel the stepper motors as a spare part.
    Triumph does and it will fitbut, alas I did not know that then and had to fork out a king's ransom to change out the whole injection thingy.
    #25
  6. NW_rider

    NW_rider Adventurer

    Joined:
    Apr 3, 2010
    Oddometer:
    27
    Location:
    Oregon City, OR
    I recently replaced the idle stepper motor and did the 15 min reset and went for a day ride. The bike ran well in the morning and I thought the bike was cured but in the afternoon it was back to the stuck idle. Would using TuneECU diagnose the problem? I have the cable and spent two hours last weekend trying to get it setup but I get an error when trying to download the drivers for it (using an old desktop running XP). Would using TuneECU identify the problem or do I just need to replace the two throttle position sensors? I'm really hoping the solution is something other than replacing the whole assembly!
    #26
  7. Gustavo.Ramos

    Gustavo.Ramos Long timer

    Joined:
    May 19, 2008
    Oddometer:
    1,152
    Location:
    Accross the pond
    I'd first have a check on the TPS values over several ocasions just to check for a pattern
    #27
  8. Dirtcar5

    Dirtcar5 Adventurer

    Joined:
    Oct 4, 2015
    Oddometer:
    36
    Location:
    Spring grove pa
    #28