Feroza F300 autochoke.


I am looking for information about the autochoke mechanism (cross section or diagram)and how to tuned it up. This point is not detailed at all not in the workshop manual nor in the service manual (in German, from http://appakov.narod.ru/feroza.html).
As I'm living in relatively warm country I have no special problem with starting, not even in the winter, but I have to warm the engine a little while. So, a manual choke is to much energy for me to put.