KYMCO MX 125 - Ignition Coil

15. IGNITION SYSTEM
15-5
MX’er SYSTEM
Connect the special connector to the CDI
coupler and CDI tester.
Switch Range Good CDI Faulty CDI
1. OFF
2. P
3. EXT
4. ON1
5. ON2
No spark
No spark
No spark
Good spark
Good spark
⎯⎯
⎯⎯
Good spark
No spark
No spark
If the CDI unit is faulty, replace it with a
new one.
Remove the seat.
Disconnect the change gear control coupler
and remove the change gear control unit.
Measure the resistance between the
terminals using the electric tester.
Testing Range
Use the xKΩ range for the Sanwa Tester.
Use the xKΩ range for the Kowa Tester.
Note: The readings in this table are taken
with a Sanwa Tester.
CDI Teste
r
Ignition Coil
Spark
Window
CDI Uni
t
Spark Plug
Unit:
KΩ
IGNITION COIL INSPECTION
CONTINUITY TEST
Probe⊕
(-)Probe
Black Green
Green/
Yellow
Green/
Pink
Light Green/
Red
Blue/
Yellow
Yellow/
Brown
Black 5-50K 5-50K 5-50K 5-50K 5-50K 5-50K
Green
∞
5-50K 5-50K 5-50K 5-50K 0
Green/
Yellow
∞
5-50K 10-50K 10-50K 10-50K 5-50K
Green/
Pink
∞ ∞ ∞
0
∞ ∞
Light Green/
Red
∞ ∞ ∞
0
∞ ∞
Blue/
Yellow
∞
50-200K 50-200K 50-200K 50-200K
Yellow/
B
∞
0 5-50
K
5-50
K
5-50
K
5-50
K
Blue/Yellow Yellow/Brown Light Green/Red
Black
Green /YellowGreen
Green
/
Pink