Equus 5568 - INNOVA Pro Digital Timing Light (DIS) - Manual (Page 11)

Operation
5568 9
TIMING ADJUSTMENT
Refer to the vehicle’s service manual for procedures to adjust timing. DO NOT
ATTEMPT TO ADJUST TIMING WITHOUT MANUFACTURER’S
SPECIFICATIONS.
TROUBLESHOOTING
NOTE: If the timing light readout becomes inoperative or locks up during use,
disconnect and reconnect the timing light's positive battery clamp from the
battery to reset the unit.
If the timing light fails to operate, make the following checks:
a. Make sure the battery clips are firmly connected to the battery terminals.
b. Make sure the battery clip polarity is correct (red clip to positive terminal, black
clip to negative terminal).
c. Make sure the upper and lower ferrite cores of the inductive pickup clip are
clean. Clean the inductive pickup clip if necessary (refer to Chapter 3).
d. Make sure the inductive pickup clip is properly connected to the No. 1 spark plug
cable.
e. Make sure the No. 1 spark plug is working properly:
■ Connect the inductive pickup clip to another spark plug cable.
■ If the timing light flashes, service the No. 1 spark plug before continuing.
CLEANING THE INDUCTIVE PICKUP CLIP
Dirt or grease on the inside surfaces of the inductive pickup clip can result in erratic
flashing or poor operation of the timing light. Periodically clean the contact surfaces
inside the inductive pickup clip by wiping with a soft cloth.
REPLACING THE INDUCTIVE PICKUP LEADS
The timing light is equipped with detachable leads which can be disconnected from
the timing light for easy storage after use. If the test leads or clips become damaged,
a replacement set can be obtained from your dealer or directly from the service
center.
Maintenance