Yamaha 2011 FZ8NA(C) Service Manual page 458

3. Check:
• Ignition spark gap
Out of specification → Replace.
Minimum ignition spark gap
6.0 mm (0.24 in)
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a. Connect the ignition checker "1" as shown.
Ignition checker
90890-06754
Oppama pet-4000 spark checker
YM-34487
2. Ignition coil
b. Set the main switch to "ON" and engine
stop switch to " ".
c. Measure the ignition spark gap "a".
d. Crank the engine by pushing the starter
switch and gradually increase 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:
• Crankshaft position sensor resistance
Out of specification → Replace the crank-
shaft position sensor.
Crankshaft
resistance
336–504 Ω at 20 °C (68 °F)
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a. Connect the pocket tester (Ω × 100) to the
crankshaft position sensor coupler as
shown.
position sensor
8-109
ELECTRICAL COMPONENTS
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
Gray "1"
• Negative tester probe
Black "2"
b. Measure the crankshaft position sensor
resistance.
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EAS28131
CHECKING THE LEAN ANGLE SENSOR
1. Remove:
• Lean angle sensor
(from the battery box.)
2. Check:
• Lean angle sensor output voltage
Out of specification → Replace.
Lean angle sensor output volt-
age
Less than 65°: 0.4–1.4 V
More than 65°: 3.7–4.4 V
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a. Connect the test harness-lean angle sen-
sor (6P) "1" to the lean angle sensor and
wire harness as shown.
b. Connect the pocket tester (DC 20 V) to the
test harness-lean angle sensor (6P).
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Test harness- lean angle sensor
(6P)
90890-03209
YU-03209