Carburetor adjustment

Each carburetor is tested and adjusted at the factory. This setting should not be changed. Very high fuel consumption and insufficient engine power are most often due to other causes, with the method of driving and driving conditions playing a particularly important role. You can usually limit yourself to careful adjustment of idling and CO content. Proper idle speed control is more important than many people think, as it affects engine transients right up to the average speed of the crankshaft.

Note: in accordance with German law, the carburetor screw, which can change the composition of exhaust gases, is protected from unauthorized access.

The protective cap is removed with tongs or a screwdriver. In some cases, it is advisable to screw a screw with a diameter of approximately 2 mm into the protective cap, and then use forceps to remove the cap by this screw. In this case, the protective cap is destroyed. After adjustment, the adjusting screw must be closed with a new cap (from spare parts for the corresponding carburetor).

As soon as the exhaust gas values no longer correspond to the prescribed values, the vehicle operating permit becomes invalid. If the carburetor does not have a protective cap, then when checking the car with an automobile inspection, penalties may be imposed.

Attention: When working on the carburetor and fuel lines, the safety and cleanliness rules for working on fuel supply systems must be strictly observed, see p. 54.