Checking The Air Induction System Solenoid; Checking The Atmospheric Pressure Sensor - Yamaha YZFR6X(C) 2008 Service Manual

• Do not smoke, and keep away from open
flames, sparks, or any other source of
fire.
• If you do accidentally spill gasoline, wipe
it up immediately with dry rags.
• If gasoline touches the engine when it is
hot, a fire may occur. Therefore, make
sure the engine is completely cool before
performing the following test.
1. Disconnect:
• Fuel pump coupler
• Fuel sender coupler
(from the wire harness)
2. Remove:
• Fuel tank
3. Check:
• Fuel pump operation
Faulty/rough movement → Replace.
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a. Fill the fuel tank.
b. Put the end of the fuel hose "1" into an
open container.
c. Connect the battery (DC 12 V) to the fuel
pump terminal as shown.
• Positive battery lead →
red/blue "2"
• Negative battery lead →
black "3"
2
3
d. Check the fuel pump operation.
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ELECTRICAL COMPONENTS
EAS28370
CHECKING THE AIR INDUCTION SYSTEM
SOLENOID
1. Check:
• Air induction system solenoid resistance
Out of specification → Replace.
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a. Disconnect the air induction system sole-
noid coupler from the air induction system
solenoid.
b. Connect the pocket tester (Ω × 1) to the air
induction system solenoid terminal as
shown.
• Positive tester probe →
brown/red "1"
• Negative tester probe →
red/white "2"
2
c. Measure the air induction system solenoid
resistance.
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EAS28380
CHECKING THE ATMOSPHERIC PRES-
SURE SENSOR
1. Check:
• Atmospheric pressure sensor output volt-
1
age
Out of specification → Replace.
8-99
Solenoid resistance
18–22 Ω at 20 °C (68 °F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
1
Br/R R/W
Atmospheric pressure sensor
output voltage
3.15–4.15 V