Yamaha YZ125 2015 Owner's Service Manual page 153

2. Inspect:
• Charging coil 1 resistance
Out of specification → Replace.
Tester (+) lead → Black/Red lead
"1"
Tester (-) lead→Green/White lead
"2"
Charging Tester se-
coil 1 resis- lector posi-
tance
720.0–
1,080.0 Ω
at 20 °C (68
°F)
3. Inspect:
• Charging coil 2 resistance
Out of specification → Replace.
Tester (+) lead → Green/Blue lead
"1"
Tester (-) lead → Black lead "2"
Charging Tester se-
coil 2 resis- lector posi-
tance
44.0–66.0
Ω at 20 °C
(68 °F)
CHECKING THE CDI UNIT
Check all electrical components. If no
fault is found, replace the CDI unit.
Then check the electrical compo-
nents again.
tion
Ω × 100
tion
Ω × 10
6-4
IGNITION SYSTEM