Adjusting The Throttle Position Sensor; Installing The Injector - Yamaha WR450F Owner's Service Manual

ADJUSTING THE THROTTLE POSITION
EAS2GC1355
SENSOR
EWA
WARNING
• Handle the throttle position sensor with
special care.
• Never subject the throttle position sensor
to strong shocks. If the throttle position
sensor is dropped, replace it.
1. Check:
• Throttle position sensor
Refer to "CHECKING THE THROTTLE PO-
SITION SENSOR" on page 9-79.
2. Adjust:
• Throttle position sensor angle
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the Yamaha diagnostic tool.
Refer to "YAMAHA DIAGNOSTIC TOOL" on
page 9-32.
Yamaha diagnostic tool
90890-03231
Yamaha diagnostic tool (US)
90890-03234
b. Temporary tighten the throttle position sen-
sor.
c. Check that the throttle grip is fully closed.
d. Connect the throttle position sensor to the
wire harness.
e. Set the Yamaha diagnostic tool to "diagnos-
tic mode".
f. Choose the diagnostic code No. "01".
g. Adjust the throttle position sensor mounted
angle until "11"–"14" appears on the Yama-
ha diagnostic tool.
h. After adjusting the throttle position sensor
mounted angle, tighten the throttle position
sensor screws "1".
Throttle position sensor screw
3.4 Nm (0.34 m·kgf, 2.5 ft·lbf)
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲

INSTALLING THE INJECTOR

EAS2GC1356
1. Install:
• Fuel injector coupler "1"
TIP
Align the projection "a" on the fuel inlet pipe
with the slots "b" on the fuel injector coupler.
1
8-11
THROTTLE BODY
b
a
1