Checking The Ignition Spark Gap; Checking The Spark Plug Caps; Checking The Ignition Coil - Yamaha 2009 Diversion XJ6S Service Manual

unit terminal as shown.
c. Check the relay unit (diode) for continuity.
d. Check the relay unit (diode) for no continuity.
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EAS28930

CHECKING THE IGNITION SPARK GAP

1. Check:
Ignition spark gap
G
Out of specification → Perform the ignition
system troubleshooting, starting with step 5.
Refer to "TROUBLESHOOTING" on page
8-5.
Minimum ignition spark gap
6.0 mm (0.24 in)
TIP
If the ignition spark gap is within specification,
the ignition system circuit is operating normally.
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a. Disconnect the spark plug cap from the spark
plug.
b. Connect the ignition checker "1" as shown.
Ignition checker
90890-06754
Opama pet-4000 spark checker
YM-34487
a
2
1
1. Ignition checker
2. Spark plug cap
c. Turn the main switch to "ON" and set the en-
gine stop switch to "
d. Measure the ignition spark gap "a".
e. Crank the engine by pushing the start switch
" " and gradually increase the spark gap un-
til a misfire occurs.
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".
ELECTRICAL COMPONENTS
EAS28070

CHECKING THE SPARK PLUG CAPS

The following procedure applies to all of the
spark plug caps.
1. Check:
Spark plug cap resistance
G
Out of specification → Replace.
Resistance
10.0 kΩ Ω Ω Ω
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a. Remove the spark plug cap from the spark
plug lead.
b. Connect the digital circuit tester (Ω × 1k) to
the spark plug cap as shown.
Digital circuit tester
90890-03174
Model 88 Multimeter with tachom-
eter
YU-A1927
c. Measure the spark plug cap resistance.
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EAS28080

CHECKING THE IGNITION COIL

1. Check:
Primary coil resistance
G
Out of specification → Replace.
Primary coil resistance
1.53–2.07 Ω Ω Ω Ω
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a. Disconnect the ignition coil connectors from
the ignition coil terminals.
b. Connect the digital circuit tester (Ω × 1) to the
ignition coil as shown.
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