Ignition Timing: Adjustments

Fig. 207 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. 207

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. Consult the operating manual for your instrument.

Fig. 208 Check Connector And Service Wire:

3. Using a service wire, connect terminals T and E1 of the check connector located near the air cleaner. Fig. 208
4. Check idle speed.

Idle Speed: 800 rpm

Fig. 214 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. 214

Ignition Timing: 10° BTDC at idle

6. Tighten the distributor bolt and recheck the ignition timing.
7. Remove service wire.
8. Check idle advance timing with service wire removed.

Ignition Timing: More than 16° BTDC at idle


9. Disconnect tachometer and timing light from engine.