This is the end of this topic, BK answered me after a looooong discussion...
I didn't have to cut the red wire!!! I just had to unplug the black jumper, the effect is the same, in fact you cut the red wire in unplugging the black jumper... But BK recommended me to not cut the red wire, but to prefer unplugging the jumper...
I will try this las solution, and let u know...
The instructions are not as easy for you my english colleagues, as for us, frenc-speaking guys...
I hope that these 2 possibilities (cut red wire/unplugged jumper) provide the same results... if not i will take a gun and explode my Warrior!!!!!!!