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Manuals through 2025 now available!

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Ignition Timing: Testing and Inspection

Adjusting Distributor:





Before checking and adjusting ignition timing, it is necessary to confirm that the throttle sensor idle switch is adjusted properly. Refer to ADJUSTMENT PROCEDURES.

1. Warm up engine.
2. Confirm that throttle sensor idle switch is "ON."
3. Connect Test Mode connector (green connector).
4. Hook up timing light, start engine and check timing.
5. If adjustment is needed, loosen 6mm distributor plate mounting bolts.
6. Turn distributor clockwise to advance timing and counterclockwise to retard timing.
7. When adjustment is complete, tighten bolts and recheck timing.
8. Turn off engine and disconnect Test Mode connector.


Ignition Timing (BTDC): 20° /700 rpm