15 minute idle clarification....

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Jnxdrcg, Jul 20, 2009.

  1. Jnxdrcg

    Jnxdrcg notanoob

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    I have looked everywhere for clarification on this point and cant seem to find an answer. Do you shut the bike off or just start riding it at the 15.5 minute mark?
    #1
  2. Crisis management

    Crisis management Latte riders FTW!

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    My understanding is that you turn the bike off then restart and go play..if you don't shut it off between 15 minutes and 15minutes 40 seconds the ECU doesn't reset itself, it needs the actual shut off action to cause the reset.

    This gem of internet wisdom is based upon researching these "facts" here, rather than any in depth knowledge of how the ECU works.
    #2
  3. alphajory

    alphajory Been here awhile

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    you have to shut the bike off at 15 min 30 seconds of the reset. If i remember correctly it best done in cooler temps with the motor cold. Once done your good to go.

    There are a lot of different treads on why and how it works but basically it has to do with the way the closed loop system that is on these bikes works.
    #3
  4. dezracer

    dezracer Been here awhile

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    With all due respect this appears to be 'a guess". Not only the 15minute idle but whether or not to cycle the key. I have done the 15 minute idle, but proceeded to ride without cycling the key and yes it always "seems" to run smoother off idle.

    I would feel better if the process was written somewhere, anywhere. With auto ECUs the procedure for re-setting always includes unhooking the battery for 10 minutes or so and starting with a clean slate so to speak. This makes sense to me so thats what I do, but again all this 15 minute idle thing is not written anywhere to my knowledge. If Im wrong then I will stand corrected.
    #4
  5. Venteuri

    Venteuri I don't give a shit

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    From the bible:

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  6. Venteuri

    Venteuri I don't give a shit

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    Correct.
    And the repair manual, says

    [​IMG]
    #6
  7. roundtripping

    roundtripping Adventourist

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    So it seems like someone read something about 15 mins idling in the repair manual, took that final step out of context and now people think a full reset can be done by just idling for 15 mins?
    #7
  8. tobys

    tobys OCD Hobbiest

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    "not less than 15 minutes and not more than 16"...

    Sounds pretty hard to believe, but I can't access the link from KTM.

    It's odd that the computer (or whatever it is) would take all the readings, and be ready to re-map, and then say "oops, we hit 16 minutes, nevermind...".

    anyway, no harm in trying, I'll go for it.
    #8
  9. dezracer

    dezracer Been here awhile

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    If you are not hooked up to the KTM diagnostic tool thats the way I read it as well. Turning the key off as stated is maybe a saftey precautuion when you are hooking and unhooking the diagnostic tool????

    Could this 15 minute idle thing be Orange Crush folk lore? God forbid us inmates would be lored in by an internet rumor. We are way to smart for that. LOL! Some of the stuff wriiten above seems like BS to me. Like making certain the bike is on the centerstand. What possible diffrence would that make with an EFI motor. I do agree with letting the motor warm to 3 bars though. That makes sense so I do it. (Is that even stated in the owners manual?)

    I admit that the few times I have performed the 15 min idle it "seemed" smoother off idle, but then again depending on conditions the off idle abruptness seems to creep back in. I will say that with the mods listed in my sig I have basically eliminated that gremlin though.
    #9
  10. Jnxdrcg

    Jnxdrcg notanoob

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    NOTE: the engine must run in idle for 15 minutes after each mapping
    operation (Mapping initializing). Do not accelerate during this time,
    observe the coolant temperature and abort if the engine threatens to
    overheat.




    I got this from the manual and yet despite all this information there is still no word on what you do after the 15 minutes are up....
    #10
  11. ADVJake

    ADVJake ***** dweller

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    So... is there a hacked version of the KTM diagnostic tool out yet? :D
    #11
  12. MookieBlaylock

    MookieBlaylock Long timer

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    tuneboy software has a "reset adaptive settings" function
    #12
  13. Mad Kaw Disease

    Mad Kaw Disease Dual Sport Diseased

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    You'd think that someone at KTM would care enough to read these major forums and debunk any glaring myths for us...but then that might shatter the mystique...
    #13
  14. alphajory

    alphajory Been here awhile

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    With the 15 minute idle it's done not to change the mapping, its done to re calibrate the ECU. the ECU system self learns if i remember in the closed loop period of operation, the 15 minuite idle alows the ECU recalerbrate the “actual” parameters of your engine.
    #14
  15. Pete156

    Pete156 I love to eat!

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    So how long does this recalibration last? Sounds like some inmates are having to perform this 15 minute idle several times.

    I won't buy a FI KTM until they get this kind of stuff sorted. How can the FI on the new Husabergs be so spot on and the 990s so not?
    #15
  16. 9nine0

    9nine0 Formally NineFive0 V2

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    The above portion from the service manual is correct. After the 15 minutes is up, it doesn't matter what you do.
    #16
  17. roundtripping

    roundtripping Adventourist

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    Right, but I think the real question is whether the 15 mins of idling matter if you haven't performed the diagnostic tool steps described in the repair manual preceding the idling. I can't imagine they put those steps in just for shyts and giggles.
    #17
  18. 9nine0

    9nine0 Formally NineFive0 V2

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    With the diagnostic tool you can manually "reset" or "clear" the sensors memory before they adapt themselves during the 15 minute idle. Doing this step helps, but it is not 100% critical that you use the tool.
    #18
  19. Killer Whale KTM

    Killer Whale KTM Life is the adventure!

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    Guys,
    I was told by a KTM mechanic that you MUST reset (clear) the module in order for the 15 min idle to "TAKE". I think he is correct and is otherwise a very profesional mechanic.
    Good luck !
    Killer Whale KTM
    #19
  20. dezracer

    dezracer Been here awhile

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    WELL....This is going nowhwere:1drink But I wonder oif disconnecting the battery overnight would help clear the A\F memory . It works that way on most cars.
    #20