Yamaha YZ426F(M)/LC Owner's Service Manual page 550

Ω×1
1
– +
Sb L/W
R/W
W
IGNITION SYSTEM
2. Inspect:
Source coil 1 resistance
Out of specification → Replace.
Tester (+) lead → Brown lead 1
Tester (–) lead → Green lead 2
Source coil 1
resistance
720 ~ 1,080 Ω
at 20 ˚C (68 ˚F)
3. Inspect:
Source coil 2 resistance
Out of specification → Replace.
Tester (+) lead → Pink lead 1
Tester (–) lead → Black lead 2
Source coil 2
resistance
44 ~ 66 Ω at
20 ˚C (68 ˚F)
NEUTRAL SWITCH INSPECTION
1. Inspect:
Neutral switch conduct
Tester (+) lead → Sky blue lead 1
Tester (–) lead → Ground
NEUTRAL
INGEAR
No continuity while in neutral → Replace.
Continuity 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 × 10
Tester selec-
Sb
Ground
tor position
1
Ω × 1
+