Tighten the adjusting screw 24 (see photo) of the mixture quality (composition) until it lightly touches, then turn it out 2.5 turns.
The auxiliary starting device must cut off the current at the moment when the coolant temperature reaches +65°C, i.e. piston 23 must close.
If the temperature-sensitive element 25 is replaced by a box or piston 23, it is necessary to re-adjust the gap "A" with screw 24.
Heat the auxiliary starting device by placing it in a tank with water heated to a temperature of +20°C.
Unscrew the threaded plug 29.
Adjust the gap "A" with the adjusting screw 24. In this case, if the diameter of the hole "B" is 9.0 mm, the gap "A" should be 4.4 mm, if the diameter of the hole "B" is 6.4 mm, the gap "A" should be 3.1 mm.
[The website served as the basis for the text: BMWman.ru]