Checking The Stator Coil; Checking The Rectifier/Regulator; Checking The Horn; Checking The Fuel Sender - Yamaha XSR 900 2022 Service Manual

EAS30566

CHECKING THE STATOR COIL

1. Disconnect:
• Stator coil coupler
(from the wire harness)
2. Check:
• Stator coil resistance
Out of specification → Replace the stator coil.
Stator coil resistance
0.152–0.228 Ω
a. Connect the digital circuit tester to the stator
coil coupler as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe
white "1"
• Negative tester probe
white "2"
• Positive tester probe
white "1"
• Negative tester probe
white "3"
• Positive tester probe
white "2"
• Negative tester probe
white "3"
b. Measure the stator coil resistance.
1 2 3
W W W
8-46
ELECTRICAL COMPONENTS
EAS30680

CHECKING THE RECTIFIER/REGULATOR

1. Check:
• Battery charging voltage
Out of specification → Check the stator coil
condition. If the stator coil does not have a
problem, replace the rectifier/regulator.
Refer to "CHECKING THE STATOR COIL"
on page 8-46.
Battery charging voltage
above 14 V at 5000 r/min
a. Connect the digital circuit tester to the bat-
tery terminal.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe →
Battery positive terminal
• Negative tester probe →
Battery negative terminal
b. Start the engine and let it run at approxi-
mately 5000 r/min.
c. Measure the battery charging voltage.
EAS30569

CHECKING THE HORN

1. Check:
• Horn sound
Faulty sound → Replace.
EAS30573

CHECKING THE FUEL SENDER

1. Disconnect:
• Fuel pump coupler
(from the fuel pump)
2. Remove:
• Fuel tank
3. Remove:
• Fuel pump
(from the fuel tank)