Ignition Timing: Adjustments

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

Test Connector:

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

780 - 820 rpm

Idle Adjustment:

7. If idle speed is not within specification, remove blind cap from air adjusting screw and turn screw to adjust.

Fig. 7 Timing Mark:

8. Check that the ignition timing is as specified.

11 ± 1° BTDC

Fig. 8 Distributor Bolts:

9. If ignition timing is not within specification, loosen distributor lock bolts 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.