Yamaha WR250F Manuel D'atelier page 620

IGNITION SYSTEM
2. Inspect:
Charging coil 1 resistance
G
Out of specification → Replace.
Tester (+) lead → Brown lead 1
Tester (–) lead → Green lead 2
Charging coil 1
resistance
640 ~ 960 Ω at
20 ˚C (68 ˚F)
3. Inspect:
Charging coil 2 resistance
G
Out of specification → Replace.
Tester (+) lead → Pink lead 1
Tester (–) lead → Green lead 2
Charging coil 2
resistance
464 ~ 696 Ω at
20 ˚C (68 ˚F)
NEUTRAL SWITCH INSPECTION
1. Inspect:
Neutral switch conduct
G
Tester (+) lead → Sky blue lead 1
Tester (–) lead → Ground 2
NEUTRAL
IN GEAR
No continuous while in neutral → Replace.
Continuous while in gear → Replace.
EC628000
CDI UNIT INSPECTION
Check all electrical components. If no fault is
found, replace the CDI unit. Then check the
electrical components again.
6 - 6
–
ELEC
Tester selector
position
Ω × 100
Tester selector
position
Ω × 100
Tester selec-
Sb
Ground
2 tor position
1
Ω × 1
+