Yamaha 2008 Fazer FZ1-N Service Manual page 361

2008 motorcycle
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EAS2D1011
CHECKING THE SUB-THROTTLE SERVO
MOTOR
1. Check:
• Sub-throttle servo motor operation
Out of specification → Replace.
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a. Check whether or not the sub-throttle valve
is seized.
1. Turn the nut of worm shaft of the sub-
throttle servo motor by hand to check
that the sub-throttle valve is moved
smoothly by hand.
2. If it is not moved smoothly, disconnect
the link between the sub-throttle servo
motor and sub-throttle valve, and then
check whether or not the sub-throttle
valve is moved smoothly by hand.
Refer to "THROTTLE BODIES" on page
7-4.
3. When the sub-throttle valve is not
moved smoothly, repair or replace it
since the cause is the seizure of sub-
throttle valve body itself.
When it moved smoothly at Step (1)
and (2), replace the sub-throttle servo
motor.
b. Perform the self-diagnosis mode and check
the operation of sub-throttle valve by visual
inspection (Code No: 56).
The operation should be carried out as 5-
second drive in the full open direction, 2-
second stop and 5-second drive in the full
close direction.
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EAS5D01012
CHECKING THE THERMO WAX
1. Check:
• Thermo wax "1"
Damage → Replace the thermo wax
assembly.
EAS5D01026
ADJUSTING THE THERMO WAX
1. Adjust:
• Thermo wax the end face distance "a"
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a. Before adjusting the distance, push the rod
"b" in order to be fitted in several times by
hand.
b. Measure the outside air temperature, and
adjust the distance "a" by turning the
adjusting screw "2". Refer to the thermo
wax tolerance table based on the mea-
sured outside air temperature for correct
adjustment.
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7-10
THROTTLE BODIES

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