Ignition Timing: Adjustments

PREPARATION

Diagnosis Connector:

1. Warm engine to operating temperature.
2. Turn all electrical loads "OFF."
3. If using Mazda System Selector (SST #49 B019 9A0), connect to diagnosis connector. Set switch "A" to position "1" and test switch to "SELF-TEST" position.
4. Connect tachometer and timing light.

NOTE: If Mazda SST is not used, install a jumper wire between diagnosis connector "TEN" and "GND" terminals.

ADJUSTMENT

Timing Adjustment:

1. Following preparation, check if timing mark (yellow) on crank pulley is aligned with mark on timing belt cover:

7° ± 1° BTDC

2. If adjustment is required, loosen lock bolts and turn distributor as needed to align timing marks.
3. Tighten lock bolts to 19 - 25 Nm (14 - 19 ft lb).
4. Following adjustment, remove SST or jumper wire.