Automatic timing advance?

[Marco]

So I'm wanting to figure out what is the source of the automatic timing advance that should happen on 2012 GU at higher rpm's

 

Is it from coil? hall sensor? internal to the motor?

 

It appears advance is not happening as it should here.

 

Thanks in advance,

Marco

[RussN]

Electronic ignitions have the advance curve "programmed" internally.

 

RN

[racepres]

And, I have never had one fail by Not controlling advance...

Sitting here wondering, because I do Not Know, Does the Ural utilize a VOES??

If so it can leak vacuume, and the timing will Not advance ...

[Marco]

So would it be the hall sensor that is bad on a ducati ignition?

[racepres]

So would it be the hall sensor that is bad on a ducati ignition?

 

In a No Fire scenario... yes...

advance/retard occurs in the "magic box"

sometimes controlled outside via a VOES... On a Ural IDK about the VOES... maybe don't use it!!!

[Anonymous5]

So would it be the hall sensor that is bad on a ducati ignition?

 

In a No Fire scenario... yes...

advance/retard occurs in the "magic box"

sometimes controlled outside via a VOES... On a Ural IDK about the VOES... maybe don't use it!!!

 

Stock Ural electronic ignition on 2007-2013 models is the Ducati ignition. It does not use a VOES.

[Vance Blosser]

The advance curve starts pretty quickly after idle. Slow it down to about 600 rpm and then check the advance with a timing light. If your engine is idling fast it will already be advanced.

[Marco]

I can't adjust it out any less than 1000rpm

[RussN]

I can't adjust it out any less than 1000rpm

Check for air leaks in your carb compliance fittings

That could raise the engine rpm.

RN.

[racepres]

I can't adjust it out any less than 1000rpm

I can't adjust it out any less than 1000rpm

Check for air leaks in your carb compliance fittings

That could raise the engine rpm.

RN.

 

Adjust Idle Stop to lower RPM then adjust the low speed air Mixture, at Low RPM, just like Timing!!!

 

And Heed Russ on the intake leak thing... Intake leaks are Bad JuJu, and can be Catastrophic!!

[Scott E]

CDI ignition systems use capacitors and resistors to change the advance curve depending on engine RPM. Microprocessor ignition systems have a computer that sets the advance by monitoring engine RPM and setting the advance using programmed settings from a look up table. CDI systems actually retard timing to control the "Advance" curve. The slower the engine is turning the more the timing is retarded. If that made your head hurt you are not alone! It's counter intuitive to what you would expect. Typically with microprocessor ignition systems static timing is set so the plugs are fired at the lowest end of the advance curve. If you have a CDI system or a system that use passive components such as resistors and capacitors to control timing typically static timing will be set at the maximum of the advance curve. That's generally how you can tell what sort of system your electronic ignition system is using is how the static timing is set. One exception are electronic ignition systems that retain a mechanical advance system using fly weights and springs with a magnet attached that sets advance in exactly the same way points would do.