Adjusting The Accelerator Position Sensor - Yamaha MTN850-A 2017 Service Manual

2
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS30486
ADJUSTING THE ACCELERATOR POSITION
SENSOR
EWA15960
WARNING
• Handle the accelerator position sensor with
special care.
• Never subject the accelerator position sen-
sor to strong shocks. If the accelerator po-
sition sensor is dropped, replace it.
1. Check:
• Accelerator position sensor
Refer to "CHECKING THE ACCELERATOR
POSITION SENSOR" on page 8-170.
2. Adjust:
• Accelerator position sensor angle
TIP
Before adjusting the accelerator position sensor,
the throttle bodies must be removed.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Temporary tighten the accelerator position
sensor bolts.
b. Check that the throttle valves are fully closed.
c. Connect the accelerator position sensor to
the wire harness.
d. Connect the throttle cables to the throttle bod-
ies.
e. Remove the protective cap "1", and then con-
nect the Yamaha diagnostic tool to coupler.
TIP
For information about using the Yamaha diag-
nostic tool, refer to the operation manual that is
included with the tool.
2
7-13
THROTTLE BODIES
f. Diagnostic code number "14" is selected.
g. Turn the throttle grip to the fully closed posi-
tion.
h. Adjust the position of the accelerator position
sensor angle so that 12–22 can appear in the
Yamaha diagnostic tool screen.
i. After adjusting the accelerator position sen-
sor angle, tighten the accelerator position
sensor bolts "2".
Accelerator position sensor bolt
3.5 N·m (0.35 kgf·m, 2.5 lb·ft)
2
2
j. Turn the throttle grip to the fully open position.
k. Check the Yamaha diagnostic tool screen
value. If the Yamaha diagnostic tool screen
value is not 97–107, adjust the accelerator
position sensor angle.
l. Select the diagnostic code number "15".
m. Turn the throttle grip to the fully closed posi-
tion.
n. Check the Yamaha diagnostic tool screen
value. If the Yamaha diagnostic tool screen
value is not 10–24, adjust the accelerator po-
sition sensor angle.
o. Turn the throttle grip to the fully open position.
p. Check the Yamaha diagnostic tool screen
value. If the Yamaha diagnostic tool screen
value is not 95–109, adjust the accelerator
position sensor angle.
q. Repeat steps (f) to (p) until the Yamaha diag-
nostic tool screen values are within the spec-
ified ranges.
1