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Yamaha WR450F(T) - Page 660

Yamaha WR450F(T)
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6 - 5
+
ELEC
IGNITION SYSTEM
MAIN SWITCH INSPECTION
1. Inspect:
Main switch conduct
Continuous while the main switch is moved to
OFF Replace.
Not continuous while the main switch is moved
to ON Replace.
2. Inspect:
Main switch indicator light
Use 12 V battery.
Indicator light does not come on Replace.
3. Inspect:
Rubber part a
Tears/damage Replace.
Tester (+) lead
Red lead
1
Tester () lead
Brown lead
2
R
1
Br
2
Tester selec-
tor position
ON
×
××
×
1
OFF
Battery (+) lead
Red/Black lead
1
Battery () lead
Black lead
2
a
EC626002
IGNITION COIL INSPECTION
1. Remove the ignition coil cap.
2. Inspect:
Primary coil resistance
Out of specification Replace.
Tester (+) lead
Orange lead
1
Tester () lead
Black lead
2
Primary coil
resistance
Tester selector
position
0.08 ~ 0.10
at
20 °C (68 °F)
×
1

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