Ignition Timing: Adjustments

1) Start engine and warm it up to normal operating temperature.
2) Make sure that:
- All of electrical loads except ignition are switched off.
- A/C is OFF, if equipped.
- M/T is set in neutral (A/T is set in "P" range)
- Parking brake lever is pulled fully.
3) Check to be sure that idle speed is within specification.
4) Set timing light to No.1 high tension cord.
5) (Using SUZUKI scan tool)
Connect SUZUKI scan tool to DLC with ignition switch OFF, restart engine and fix ignition timing by using "FIXED SPARK" mode of SUZUKI scan tool.





(Not using SUZUKI scan tool)
Remove cap from monitor coupler beside right side head light.
Connect "D" and "E" terminals of monitor coupler by using service wire so that ignition timing is fixed.

NOTE:
In this state, observe ignition timing with timing light. If it is varying (if it is not fixed), that indicates ungrounded "E" terminal which prevents accurate inspection and adjustment. Therefore, be sure to ground it securely.

6) Using timing light, check that timing is within specification.

Initial ignition timing (Test switch terminal grounded):
5+1 BTDC at 800 r/min.

Ignition order: 1 - 3 - 4 - 2





7) If ignition timing is out of specification, loosen flange bolts, adjust timing by turning distributor assembly while engine is running, and then tighten bolts.
8) After tightening distributor flange bolts, recheck that ignition timing is within specification.
9) After checking and/or adjusting, disconnect service wire from monitor coupler.

NOTE:
In this state, ignition timing may vary more or less of 8° BTDC but it is nothing abnormal.

10) Verify that increasing engine speed advances ignition timing.