Yamaha XT250X 2008, Service Manual, Page: 269 / 282

ELECTRICAL COMPONENTS
7-44
c. Turn the main switch “ON” and set the engine
stop switch to the “ .
d. Measure ignition spark gap “a”.
e. Press start switch “
” to crank the engine,
and gradually increase the spark plug gap
until the engine misfires.
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EAS28110
CHECKING THE PICKUP COIL
1. Disconnect:
●
Pickup coil coupler
(from the wire harness)
2. Check:
●
Pickup coil resistance
Out of specification
→
Replace the pickup
coil and stator assembly.
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a. Connect the pocket tester (
Ω ×
100) to the
pickup coil terminal as shown.
b. Measure the pickup coil resistance.
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EAS28150
CHECKING THE STATOR COIL
1. Disconnect:
●
Stator coil coupler
(from the wire harness)
2. Check:
●
Stator coil resistance
Out of specification
→
Replace the pickup
coil and stator assembly.
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a. Connect the pocket tester (
Ω ×
1) to the stator
coil coupler as shown.
2. Spark plug cap
Pickup coil resistance
279
–
341
Ω
(Red
–
white)
Pocket tester
90890-03132
Positive tester probe
White “1”
Negative tester probe
Red “2”
Stator coil resistance
0.560
–
0.840
Ω
(White
–
white)
Pocket tester
90890-03132
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”
1 2
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