Yamaha FZ1-N Service Manual page 359

17 Checking the aomospheric pres-
sure sensor.
Refer to "CHECKING THE ATMO-
SPHERIC PRESSURE SENSOR"
on page 8-111.
OK↓
18 Check the injector.
Refer to "CHECKING THE INJEC-
TORS" on page 7-8.
OK↓
19 Check the throttle position sensor.
Refer to "CHECKING THE THROT-
TLE POSITION SENSOR" on page
8-109.
OK↓
20 Check the sub-throttle position sen-
sor.
Refer to "CHECKING THE SUB-
THROTTLE POSITION SENSOR"
on page 8-110.
OK↓
21 Check the intake air pressure sen-
sor.
Refer to "CHECKING THE INTAKE
AIR PRESSURE SENSOR" on
page 8-112.
OK↓
22 Check the coolant temperature
sensor.
Refer to "CHECKING THE COOL-
ANT TEMPERATURE SENSOR"
on page 8-108.
OK↓
23 Check the inatke air temperature
sensor.
Refer to "CHECKING THE INTAKE
AIR TEMPERATURE SENSOR" on
page 8-112.
OK↓
FUEL INJECTION SYSTEM
NG→
Replace the atomospheric pressure
sensor.
NG→
Replace the injector.
NG→
Replace the throttle position sensor.
NG→
Replace the sub-throttle position sen-
sor.
NG→
Replace the intake air pressure sensor
NG→
Replace the coolant temperature sen-
sor.
NG→
Replace the intake air temperature
sensor.
8-35