After leveling the car and warming up the engine to normal temperature, check the primary and secondary fuel levels through the inspection windows on the carburetor side. Several times sharply increase the engine speed from x.x. to 3000 rpm, then leave the engine at idle. If the fuel level does not touch the mark, adjust it by turning the adjusting screws that are located in the recesses above the inspection windows.
Do not turn the screws more than 1/8 turn every 15 seconds.
When the correct fuel level is established, put white paint dots on the adjusting screws.