i have cap and rotor opti kit, these o-rings came with the kit but i dont know where they go

On the optis with the pin drive, a section goes into the center of the cam. The two o-rings go on that section.

thanks, do you know where that black on goes? i have no idea

No, I don't know what that is. Maybe someone else will chime in. I am wrong, I do know what that is. It is the little tool provided to install the o-rings. I never figured out how it worked and I didn't use it.