7-14
E
– +
ELEC
IGNITION SYSTEM
IGNITION SPARK
WARNING
• When checking the spark gap, do not
touch any of the connections of the spark
checker/ignition tester lead wires.
• When performing the spark gap test, take
special care not to let sparks leak out of
the removed spark plug cap.
• When performing the spark gap check,
keep flammable gas or liquids away,
since this test can produce sparks.
1. Check:
• Ignition spark
Weak
→
Check the ECM output peak
voltage.
Check the ignition coil for resistance.
Checking steps:
• Connect the spark plug cap to the special
service tool.
Spark checker:
YM-34487
Ignition tester:
90890-06754
• Crank the engine and observe the igni-
tion system spark through the discharge
window.
OK
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