not stable working after cold starting

[alex-alex]

Hi!

I've a problem with cold starting of my 316 M43 1994. If it's a little bit cold outside my engine after starting work several seconds properly, but later begin working not stable and at last stalling. What interesting that this can be repeated with temperature declining - if temperature lower, this can be repeated up to 3 times. I'm suspecting that it's gage of cold starting, but have no idea where it's located and how to check it. Does anybody have any idea? Let me know if yes...