Changed idle 1150GS

Discussion in 'GS Boxers' started by Gintaronas, Nov 4, 2012.

  1. Gintaronas

    Gintaronas hobbyist

    Joined:
    Jun 26, 2007
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    Vilnius, Lithuania
    Hi,

    I have noticed that since the weather became colder (+5...+10C), my bike's idle is now about 950-1000 rpm. In summer time I set it to about 1100 rpm, but now it has dropped. Is it normal or does it mean temperature sensor is not working correctly?
    By the way, this is not the first time I notice that. I have been observing a contrary situation in beginning of summer: after setting idle to ~1100rpm in early spring, it raised to above 1200rpm in the beginning of summer. This is a bit annoying, because you have to resync the TBs when adjusting BBSs.

    Any ideas?

    G.
    #1
  2. Smilin' Dave

    Smilin' Dave I am smiling

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    Dec 29, 2007
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    This could be caused by a "winter blend" of fuel.
    #2
  3. Gintaronas

    Gintaronas hobbyist

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    Good point! Thanks.

    G.
    #3
  4. ragtoplvr

    ragtoplvr Long timer

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    This is normal. Idle speed also changes with altitude. And the drag on the engine from oil viscosity in the engine and transmission is higher. Normally for winter I set my idle up to 1200, so I don't have to worry about stalling. A also want less engine braking since tires will be cold. When real cold I may leave the fast idle lever up all the time.
    #4
  5. roger 04 rt

    roger 04 rt Long timer

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    This just happened to me for the second time.

    I own an '04 1150 and notice that occasionally the idle drops off. Usually I adjust and re-sync but I've noticed that each time I do, and then later run Techron Concentrate in a 1 ounce per gallon dosage for one tank of fuel, the idle comes back up and then I have to re-sync again. You would think I would learn to run the Techron first!

    Anyway try running some Techron Concentrate through your fuel system.
    RB
    #5
  6. vagueout

    vagueout Long timer

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    Absolutely normal behaviour. Why is a throttle sync a problem? So many posts around on the topic, make your own manometer etc threads. I always look forward to doing a quick throttle sync, sharpens my pig up nicely.:*sip*
    #6
  7. Gintaronas

    Gintaronas hobbyist

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    Vilnius, Lithuania
    Thanks, I will try some cleaner.

    No, syncing is not a problem, it just takes some time. Like 5 minutes or so. I could just ride those 5 minutes :D

    Gintaras
    #7
  8. vagueout

    vagueout Long timer

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    If that be so why are you sitting in front of a computer??:cob:dunno
    #8