2007 YAMAHA WR 250F ignition

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Page 834 of 912

YAMAHA WR 250F 2007  Manuale duso (in Italian) 7 - 13
–+ELECIGNITION SYSTEM
2. Inspect: 
•Rubber part 
a 
Tears/damage 
→ Replace.
a
MAIN SWITCH INSPECTION
1. Inspect:
•Main switch conduct
Continuous while the main switch is
moved to “OF

Page 836 of 912

YAMAHA WR 250F 2007  Manuale duso (in Italian) 7 - 15
–+ELECIGNITION SYSTEM
EC626002IGNITION COIL INSPECTION
1. Remove the ignition coil cap.
2. Inspect:
•Primary coil resistance
Out of specification 
→ 
Replace.
Tester (+) lead →
 Orange

Page 838 of 912

YAMAHA WR 250F 2007  Manuale duso (in Italian) 7 - 17
–+ELECIGNITION SYSTEM
AC MAGNETO INSPECTION
1. Inspect:
•Pickup coil resistance
Out of specification 
→ 
Replace.
Tester (+) lead →
 Red lead 1
 
Tester (–) lead →
 White lead 2
 
P

Page 872 of 912

YAMAHA WR 250F 2007  Manuale duso (in Italian) 7 - 51
–+ELECTHROTTLE POSITION SENSOR SYSTEM
THROTTLE POSITION SENSOR SYSTEM
INSPECTION STEPS
If the throttle position sensor will not operate, use the following inspection steps.
NOTE:Use the follo
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