Got today my new k2.
So i did the wire as in the manual.
Black to battery negative
Red to battery positive
Yellow to tail light (works when ignition start)
The k2 only start when i press the button.
When ignition start the k2 not starting by itself.
when ignition close the k2 doesn't shutdown.
But, if the k2 is on and then ignition start the k2 will shutdown immediately without delay.