2. When checking the ignition, the engine should be idling. Disconnect the vacuum hose from the distributor.
3. Check and adjust the ignition as follows:
4. Install the strobe according to the manufacturer's instructions.
5. Start the engine and let it idle. Adjust the idle speed in advance, because a bad idle speed will not give good ignition timing.
6. Remove the plastic cover from the flywheel housing.
7. Shine the stroboscope beam on the window and make sure that the mark appears stationary and is in line with the stationary pointer. The engine has the correct ignition timing if the mark on the flywheel, which appears stationary under the influence of the stroboscope lamp, is in the window in the flywheel housing as shown (see illustration). The ignition timing is 10° before TDC, with a tolerance of 1° in both directions.
3.7 Ignition timing marks in the clutch housing hole (carburetor engine)
8. To adjust, slightly loosen the clamping rail and turn the ignition distributor, while simultaneously monitoring the mark on the flywheel, until it occupies the correct position in the window.
9. Stop the engine, secure the pressure bar and recheck the ignition timing after connecting the vacuum hose. The ignition timing should now be early.
10. The ignition distributor of the fuel injection engine cannot be adjusted. If there is a malfunction in the ignition system, check the electronic module.