Before setting the ignition timing, check the closed state angle.
The engine temperature must be at least 30°C.
Connect the tachometer according to the instructions, see paragraph 4.39.
Check the idle speed adjustment and adjust it if necessary, see the "Carburetor" section.
Connect the stroboscope to the spark plug cable of cylinder 1.
Caution: The vacuum hose on the distributor vacuum advance valve remains attached.
Start the engine and let it idle.
Use a strobe light to illuminate the ignition timing marks on the belt pulley.
The ignition timing is set correctly if the notch on the belt pulley is comfortably opposite the indicator.
If the marks do not match when illuminated by flashes, adjust the ignition timing. To do this, depending on the model, slightly loosen the clamps or fastening nuts and turn the distributor slightly. If you turn in direction A, the ignition will occur a little earlier, if in direction B - later.
Attention: Strictly observe safety precautions when performing any work on the ignition system.
Tighten the clamps or nuts and check the ignition again.
Check idle speed.
Note: In cars using super fuels, such as those running on unleaded super gasoline, ignition must be delayed slightly (up to max. 5°). This means that the new ignition point must be to the left of the old one (the work is done in the workshop).
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