Ignition Timing: Adjustments

Fig. 30 Connecting Tachometer:

1. Start engine and allow to reach normal operating temperature.
2. Connect a tachometer test probe to terminal IG of the check connector, Fig. 30

NOTE: Never let the tachometer lead touch ground as this could cause damage to the igniter and/or coil. Be sure to check that your tachometer is compatible with this ignition system before using it. Consult the operating manual for your instrument.

Fig. 31 Check Connector And Service Wire:

3. Using a service wire, connect terminals E1 and TE1 of the check connector, Fig. 31

4. Check idle speed.

Idle Speed: 700 rpm

Fig. 32 Ignition Timing:

5. Using a timing light, verify that the timing mark on the timing cover is aligned with the mark on the crankshaft pulley. Fig. 32

Ignition Timing: 10° BTDC at idle

6. If adjustment is required, loosen distributor bolt and rotate housing until timing is correct.
7. Tighten the distributor bolt and recheck the ignition timing.

Torque: 10 ft.lbs. (14 Nm)

8. Remove service wire.
9. Check idle advance timing with service wire removed.

Ignition Timing: 9 - 11° BTDC at idle

10.. Disconnect tachometer and timing light from engine.