ELECTRICAL COMPONENTS
8-162
c. Measure the primary coil resistance.
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2. Check:
• Secondary coil resistance
Out of specification → Replace.
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a. Disconnect the spark plug cap from the igni-
tion coil.
b. Connect the pocket tester (Ω × 1k) to the ig-
nition coil as shown.
c. 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
8-6.
NOTE:
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.
c. Turn the main switch to “ON” and engine 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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EAS28120
CHECKING THE CRANKSHAFT POSITION
SENSOR
1. Disconnect:
• Crankshaft position sensor coupler
(from the wire harness)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
red/black or red/blue “1”
• Negative tester probe →
orange or gray/red “2”
Secondary coil resistance
12–18 kΩ at 20 °C (68 °F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
Spark plug lead “1”
• Negative tester probe →
Spark plug lead “2”
Minimum ignition spark gap
6.0 mm (0.24 in)
Ignition checker
90890-06754
Opama pet-4000 spark checker
YM-34487
2. Spark plug cap
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