Yamaha XSR900 2022, Service Manual

Page: 394 / 726

8-47
ELECTRICAL COMPONENTS
4. Check:
• Fuel sender resistance
Out of specification
→
Replace the fuel pump
assembly.
a. Connect the digital circuit tester (
Ω
) to the
fuel sender terminals as shown.
b. Move the fuel sender float to maximum and
minimum level position.
EAS30574
CHECKING THE FUEL LEVEL WARNING
LIGHT
This model is equipped with a self-diagnosis de-
vice for the fuel level detection circuit.
1. Check:
• Fuel level warning light “1”
(Turn the main switch to “ON”.)
Warning light comes on for a few seconds,
then goes off
→
Warning light is OK.
Warning light does not come on
→
Replace
the meter assembly.
Warning light flashes eight times, then goes
off for 3 seconds in a repeated cycle (mal-
function detected in fuel sender)
→
Replace
the fuel pump assembly.
EAS30577
CHECKING THE RADIATOR FAN MOTOR
1. Check:
• Radiator fan motor
Faulty/rough movement
→
Replace.
a. Disconnect the radiator fan motor coupler
from the wire harness.
b. Connect the battery (DC 12 V) as shown.
c. Measure the radiator fan motor movement.
EAS30578
CHECKING THE COOLANT TEMPERATURE
SENSOR
1. Remove:
• Coolant temperature sensor
Refer to “CYLINDER HEAD” on page 5-27.
WARNING
EWA14130
• Handle the coolant temperature sensor
with special care.
• Never subject the coolant temperature sen-
sor to strong shocks. If the coolant tem-
perature sensor is dropped, replace it.
Sender unit resistance (full)
9.0–12.0
Ω
Sender unit resistance (empty)
21 3 .0–219.0
Ω
Digital circuit tester (CD7 3 2)
90890-0 3 24 3
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe
→
Fuel sender terminal “1”
• Negative tester probe
→
Fuel sender terminal “2”
1
2
• Positive tester probe
blue “1”
• Negative tester probe
black “2”
ABS
1