Leaded fuel
1. In case of contactless ignition system, it is impossible to check the static ignition timing angle. However, if the distributor was installed correctly (see section 17), the ignition must be adjusted accurately enough for the engine to start and continue to run.
2. Setting the dynamic ignition advance angle using a stroboscopic lamp is described in section 8, paragraphs 10, 11 and 12. Keep in mind that the distributor is not secured with a clamping screw, but with two nuts. When checking/adjusting the ignition timing, observe the precautions specified in Section 15.
3. The contactless distributor does not require checking/adjusting the angle of the closed state of the contacts.
High octane unleaded fuel
4. The engines installed in the models under consideration are designed to operate on high-octane unleaded fuel, but the manufacturer recommends adjusting the ignition timing as follows.
Carburetor engines
5. If the engine detonates when using high-octane unleaded fuel, the ignition timing should be reduced by a maximum of 5 degrees (see section 8, paragraphs 13-19).
Injection engines
6. When using high octane unleaded fuel, the ignition timing must be reduced by 5°, otherwise this fuel may cause silent detonation at high speeds, which can lead to engine damage. The regulation procedure is given in section 8, paragraphs 14-18.
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