Troubleshooting - Innova 3568 El Manual Del Propietario

Troubleshooting

If the timing light fails to operate or operates erratically, make the following checks:
1. Make sure the battery clips are firmly connected to the battery terminals.
2. Make sure the battery clip polarity is correct (red battery clip is connected to the positive (+)
battery terminal, black battery clip is connected to the negative (–) battery terminal).
3. Make sure the upper and lower ferrite cores of the inductive pickup clip are clean. If necessary,
clean the inductive pickup clip as described in MAINTENANCE.
4. Make sure the inductive pickup clip is properly connected to the No. 1 spark plug cable.
5. Make sure the No. 1 spark plug is working properly:
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Connect the inductive pickup clip to another spark plug cable, and press the Flash switch.
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If the timing light flashes, service the No. 1 spark plug before continuing.
Low spark plug voltage or a faulty spark plug wire may cause the timing light to operate erratically.
Try moving the inductive pickup clip to a new location on the plug wire to improve operation.
Some ignition systems and/or specialty spark plug wires (solid core wires, racing wires, off-road
wires) radiate above normal Electro-Magnetic Interference (EMI) and Radio Frequency
Interference (RFI) which can cause improper operation of testing equip-ment. Contact the
manufacturers of these parts for instructions on how to use an inductive pickup with their systems.
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