Remove the air filter.
Tighten the adjusting screw 24 (see photo) quality (composition) mixture until it just touches, then unscrew it 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 should close.
If the temperature sensor 25 is replaced by a box or piston 23, the clearance must be readjusted «A» screw 24.
Heat up the starter aid by placing it in a tank of water heated to +20°C.
Loosen screw plug 29.
Adjust clearance «A» adjusting screw 24. In this case, if the hole diameter «B» 9.0 mm gap «A» must be 4.4 mm if the hole diameter «B» 6.4 mm gap «A» should be 3.1 mm.