15 minute idle clarification....

[Jnxdrcg]

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?

[Crisis management]

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.

[alphajory]

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.

[dezracer]

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.

[Venteuri]

From the bible:

The 15 minute Idle Trick:
Superduke: It seems there's a little confusion about the so called “15 min idle trick”
If the dealer changed the mapping (maybe for a different exhaust ) he had also also to do the 15 min idle run. But we don’t want to change the mapping, we only want the EFI to “re calibrate. Because of the self learning EFI the “actual” parameters of the engine are measured and stored into the EFI as new basic information, if you do a 15 minute idle run.There is a good information about this in a document from KTM Sommer.
I will try to translate the most important things you have to do.
Preparation:
Enough gas in the tank !
Do it outside , not in a closed garage and somewhere in the shadow.
You need also a stop watch.
What to do:
The bike must be in a vertical position – so don’t use the side stand for the procedure.
The engine must be cold.
Start the engine and let it idle for 15 minutes.
You are not allowed to use any functions of the bike in this time.
The time must not be less then 15 minutes and not more then 16 minutes.
If the engine stops running during this time, just restart it and let it run for the rest of the time.

[tobys]

"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.

[Venteuri]

Originally Posted by dezracer

With all due respect this appears to be 'a guess"....

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.

Correct.
And the repair manual, says

[roundtripping]

Originally Posted by Venturi

Correct.
And the repair manual, says

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?