Operation CHARM: Car repair manuals for everyone.

Ignition Timing: Testing and Inspection

MEASUREMENT

CAUTION: After warming-up, engine becomes very hot. Be careful not to burn yourself during measurement.

1) Warm-up the engine.





2) To check the ignition timing, connect a timing light to #1 cylinder spark plug cord, and illuminate the timing mark with the timing light.
3) Start the engine at idle speed and check the ignition timing.

Ignition timing [BTDC/rpm]: 15° ± 8°/700

If the timing is not correct, check the ignition control system.