connect clamp «+» stroboscope with terminal «+» battery clamp «masses» with an unpainted part of the body, and connect the stroboscope sensor clamp to the high voltage wire of the 1st cylinder.
Disconnect the vacuum hoses from the ignition distributor and start the engine at idle.
Aim a flashing strobe light into the clutch housing hatch. With the ignition timing correctly set, the mark on the flywheel should be in the center of the sunroof.
To adjust the ignition timing, stop the engine, loosen the ignition distributor flange mounting bolt and turn it to the required angle.
Start the engine and check the ignition timing again.
Repeat these operations until the correct ignition timing is set.
Check ignition timing (see subsection «Detailed Specifications».
Tighten the ignition distributor flange mounting bolt and attach the vacuum hoses to it.