12 Minute Tune

[RockOn]

You have been blessed with a miracle because its not possible for the 12 minute tune to fix your idle.

If so, I don't doubt you, however, why does my manual say this about idle and the 12 minute tune?: "Typical Values In a correctly adapted motorcycle, the following will be typical: Function Examined Read Out, Closed throttle position reference Adapted status Idle speed control adaption Between +100status and -100%Oxygen sensor adaption status 0% +/-10%(off idle)Oxygen sensor adaption range Between +100(off idle) and -100%Oxygen sensor adaption status 0% +/- 10%(idle)Oxygen sensor adaption range Between +100(idle) and -100%• Forcing adaptatlon to take place If the read out indicates that the motorcycle is not adapted, the following will force the system to make adaptions:1. Ensure the engine is cold. 2. WITHOUT TOUCHING THE THROTILE, start the engine and allow it to warm up until the cooling fan comes on. 3. Leave the engine to idle for a further 12 minutes. Note:• As an alternative to the above process,connect the diagnostic tool, scroll to ADJUST TUNE and select RESET ADAPTIONS. This will force a fast adaption routine to take place in around 5 seconds. For this to happen, the engine MUST be running, it must be at normal operating temperature and in closed loop control mode. Under any other conditions fast adaption will not take place and may cause default values to be loaded, which may then require a normal 12 minute adaption routine to be run.~. Service Manual - Rocket III 11.133"

Doesn't this mean the 12 minute tune has something to do with controlling the idle. I am strictly a novice but I am puzzled over this 12 minute tune being impossible to help my idle problem. I also realize there are probably other explanations for my idle getting back where it should be. Anyway, whatever the differing opinions are all you guys remain ACES with me.

 

[Tal]

.....look at it this way...you want to go play a round of golf with your friends on a saturday morning...the wife wants you to do some chores around the garden first....if you discuss this and start getting agitated...reving the throttle....its not going to go smoothly!...if you keep calm...no touching the throttle, everything runs smooth...it may take longer than 12 minutes...but thats ok....and you will certainly have a smoother ride after the fact.

 

[Ward]

The 12 minute tune simply resets the ECU's adaptations that may have taken place over god knows how long and in gods knows what conditions.

It resets the fine tune adjustments to the current settings (air temp, barometric pressure, fuel, etc). It doesn't make massive changes to anything, but can fine-tune issues such as tick over.

Another point worthy of note is that these adaptations happen as a result of regular sensor sweeps. The clutch switch is the trigger for this, every time you pull in the clutch, the ECU interrogates ALL sensors - including the fuel level sensor/sender ! So - if you've been somewhere extreme, residual settings can reside in the ECU that are unwanted - and the 12-minute tune may well sort that out !

Well that's my bit of input, after being a Rocket owner for 19 years now - and having serviced dozens !

 

[wjb]

My bike is so fast that the 12 minute tune only took 8 minutes 30 seconds.

 

[Itomis]

To set up this motorcycle, I bought an old laptop and installed Windows 7 on it, since TuneEcu doesn’t establish a connection with the ECU on later versions of Windows. I use a VAG‑KKL cable purchased from AliExpress for the connection. This also allows me to flash the ECU if necessary. My motorcycle was bought in Japan; for their market, it’s restricted in terms of power output — just like all their vehicles.

 

[Gregger]

To set up this motorcycle, I bought an old laptop and installed Windows 7 on it, since TuneEcu doesn’t establish a connection with the ECU on later versions of Windows.

Tune ECU works fine on my laptop equiped with Windows 10. The only thing I have to do is under Options, then Interface, choose USB instead of Serial.

 

[Itomis]

Tune ECU works fine on my laptop equiped with Windows 10. The only thing I have to do is under Options, then Interface, choose USB instead of Serial.

I haven’t tried it on Windows 10. It works on Windows 11, but the connection is unstable: it doesn’t establish on the first attempt and occasionally drops out. Naturally, I’ve tried switching the communication method and even installed the same driver that I use on Windows 7. I have an old laptop, so I didn’t dig too deep into the issue. Moreover, I also use it for programs that no longer run on newer versions of Windows.