Yamaha FZ1-N Service Manual page 316

A. Front side
B. Rear side
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
3. Adjust:
• Primary opening
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. After performing the full open angle of the
sub-throttle position sensor, turn the nut of
the worm shaft clockwise, measure the
dimension of "b" section with a micrometer
caliper or other device and adjust so that
the dimension is in a range from 8.1 to 8.5
mm (0.32 to 0.33 in).
Sub-throttle dimension "b"
8.1–8.5 mm (0.32–0.33 in)
A. Front side
B. Rear side
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
4. Adjust:
• Sub-throttle position sensor voltage
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the sub-throttle position sensor
coupler to the wire harness.
b. Connect the digital circuit tester to the sub-
throttle position sensor.
• Positive tester probe
Green/Yellow terminal "1"
• Negative tester probe
Black/Blue terminal "2"
Digital circuit tester
90890-03174
c. Move the sub-throttle position sensor to
adjust to be in the specified range.
Sub-throttle position sensor
voltage
0.97–1.07 V
d. After adjusting the sub-throttle position
sensor voltage, tighten the sub-throttle
position sensor screws.
NOTE:
• After setting up the sub-throttle position sen-
sor, check that the sub-throttle position sen-
sor output voltage is 0.4 V or more with the
nut of worm shaft turned to the full close side
until it stops.
• When the sub-throttle position sensor output
voltage is 0.4 V or more, check that the sub-
throttle position sensor output voltage is 4.6
V or less with the nut of worm shaft turned to
the full open side until it stops.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
5. Connect
• Sub-throttle motor assembly coupler
EAS2D1011
CHECKING THE SUB-THROTTLE SERVO
MOTOR
1. Check:
• Sub-throttle servo motor operation
7-10
THROTTLE BODIES