Checking The Crankshaft Position Sensor; Checking The Lean Angle Sensor; Checking The Starter Motor Operation - Yamaha YZFR6X(C) 2008 Service Manual

b. Turn the main switch to "ON" and engine
stop switch to " ".
c. Measure the ignition spark gap "a".
d. Crank the engine by pushing the start
switch " " and gradually increase the
spark gap until a misfire occurs.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
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
248–372 Ω at 20 °C (68 °F)
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the pocket tester (Ω × 100) to the
crankshaft position sensor coupler as
shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
gray "1"
• Negative tester probe →
black "2"
B
2
b. Measure the crankshaft position sensor
resistance.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS28130

CHECKING THE LEAN ANGLE SENSOR

1. Remove:
position sensor
Gy
1
ELECTRICAL COMPONENTS
• Lean angle sensor
(from the bracket)
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
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the lean angle sensor coupler to
the lean angle sensor.
b. Connect the pocket tester (DC 20 V) to the
lean angle sensor coupler as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
yellow/green "1"
• Negative tester probe →
black/blue "2"
c. Turn the main switch to "ON".
d. Turn the lean angle sensor to 65°.
e. Measure the lean angle sensor output volt-
age.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
ET2C01012
CHECKING THE STARTER MOTOR OPERA-
TION
1. Check:
• Starter motor operation
Does not operate → Perform the electric
starting system troubleshooting, starting
with step 4.
Refer to "TROUBLESHOOTING" on page
8-11.
8-93
L/G