Yamaha FJR1300A(D) Service Manual page 631

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a. Connect the pocket tester (Ω × 1k) to the ig-
nition coil as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
red/black "1"
• Negative tester probe →
Spark plug terminal "2"
b. Measure the secondary coil resistance.
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ET3P61015
CHECKING THE IGNITION SPARK GAP
1. Check:
• Ignition spark gap
Out of specification → Perform the ignition
system troubleshooting, starting with step 5.
Refer to "TROUBLESHOOTING" on page
8-4.
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. Remove the ignition coil from the spark plug.
b. Connect the ignition checker "1" as shown.
Ignition checker
90890-06754
Oppama pet-4000 spark checker
YM-34487
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ELECTRICAL COMPONENTS
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2. Ignition coil
c. Turn the main switch to "ON".
d. Measure the ignition spark gap "a".
e. Crank the engine by pushing the " " side of
the start/engine stop switch and gradually in-
crease the spark gap until a misfire occurs.
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EAS28120
CHECKING THE CRANKSHAFT POSITION
SENSOR
1. Disconnect:
• Crankshaft position sensor coupler
(from the wire harness)
2. Check:
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• Crankshaft position sensor resistance
Out of specification → Replace the crank-
shaft position sensor.
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a. Connect the pocket tester (Ω × 100) to the
crankshaft position sensor coupler as shown.
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• Positive tester probe →
gray "1"
• Negative tester probe →
black "2"
8-182
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Crankshaft position sensor resis-
tance
421–569 Ω
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Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
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