2006 YAMAHA WR 250F ignition

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Page 776 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 6 - 13
–+ELECIGNITION SYSTEM
SPARK GAP TEST
1. Disconnect the ignition coil from
spark plug.
2. Remove the ignition coil cap.
3. Connect the dynamic spark
tester 
1 (ignition checker 
2) as
shown.

Page 778 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 6 - 15
–+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 780 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 6 - 17
–+ELECIGNITION SYSTEM
EC626002IGNITION COIL INSPECTION
1. Remove the ignition coil cap.
2. Inspect:
•Primary coil resistance
Out of specification 
→ 
Replace.
Tester (+) lead →
 Orange

Page 782 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 6 - 19
–+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 816 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 6 - 53
–+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

Page 830 of 900

YAMAHA WR 250F 2006  Notices Demploi (in French) 6 - 67
–+ELECLIGHTING SYSTEM
LIGHTING SYSTEM
INSPECTION STEPS
Refer to the following flow chart when inspecting the ignition system for possible problems.
NOTE:•Replace the bulb and/or bulb socket
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