6 - 26
FI
FUEL INJECTION SYSTEM
EAS28410
CHECKING THE INTAKE AIR PRESSURE
SENSOR
1. Check:
• intake air pressure sensor output voltage
Out of specification
→
Replace.
▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼▼▼
a. Connect the pocket tester (DC 20 V) to the
intake air pressure sensor coupler as
shown.
b. Turn the main switch to “ON”.
c. Measure the intake air pressure sensor out-
put voltage.
▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲▲▲
Intake air pressure sensor output
voltage
3.75 ~ 4.25 V
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Positive tester probe
→
pink terminal
1
Negative tester probe
→
black/blue terminal
2
L
P
B
/
L
2
1
CHECKING THE INTAKE AIR
TEMPERATURE SENSOR
1. Remove:
• intake air temperature sensor
WARNING
_
• Handle the intake air temperature sensor
with special care.
• Never subject the intake air temperature
sensor to strong shocks. If the intake air
temperature sensor is dropped, replace it.
2. Check:
• intake air temperature sensor resistance
Out of specification
→
Replace.
Intake air temperature sensor
resistance
290 ~ 390
Ω
at 80 °C (176 °F)
Содержание YXR70FX
Страница 1: ...SERVICE MANUAL 2008 LIT 11616 21 58 5B4 F8197 10 YXR70FX...
Страница 6: ......
Страница 46: ...2 11 SPEC ENGINE SPECIFICATIONS Cylinder head tightening sequence 6 8 5 7 2 1 4 3...
Страница 495: ......
Страница 496: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A...