Ignition Timing: Adjustments

1. Check engine condition (spark plugs, leaks in hoses, etc.).
2. Turn all electrical loads "OFF."
3. Warm up engine to normal operating temperature.
4. Connect a tachometer (white check connector) and timing light.

Test Connector:

5. Ground test connector (green: 1-pin) with a jumper wire.
6. Check that idle speed is within specification:

750 ± 20 rpm (M/T)
770 ± 20 rpm (A/T in "P")

Fig. 14 Idle Adjustment:

7. If idle speed is not within specification, adjust by turning air adjusting screw.

Timing Mark:

8. Check that ignition timing is as specified.

5° ± 1° BTDC

Fig. 50 Distributor Adjustment:

9. If ignition timing is not within specification, loosen distributor lock bolt and rotate distributor housing to adjust.
10. Tighten distributor lock bolt to 14 - 19 ft lb (19 - 25 Nm).
11. After adjustment, disconnect jumper wire from test connector.