Checking The Solenoid Valve Operation; Checking The Solenoid Valve Coil - Yamaha YZ250X 2022 Owner's Service Manual

b. Measure the source coil resistance (B/R–
B).
3. Check:
• Charging coil 2 resistance
(G/L–G/W)
Out of specification  Replace the CDI mag-
neto.
Charging coil 2 resistance
44.0–66.0 
a. Connect the digital circuit tester () to the
CDI magneto coupler as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe 
Green/Blue "1"
• Negative tester probe 
Green/White "2"
b. Measure the source coil resistance (G/L–
G/W).
EAM30585
CHECKING THE SOLENOID VALVE
OPERATION
1. Disconnect the solenoid valve coupler.
2. Connect 12 V battery to the solenoid valve
coupler.
ELECTRICAL COMPONENTS
• Positive battery lead 
Red "1"
• Negative battery lead 
Red "2"
3. Check:
• Solenoid valve "1"
No click when connecting the battery  Re-
place.
EAM30586

CHECKING THE SOLENOID VALVE COIL

1. Check:
• Solenoid valve coil resistance
Out of specification  Replace.
• Positive tester probe 
Red "1"
• Negative tester probe 
Red "2"
Solenoid resistance
22.8–27.8 
8-10