15. IGNITION SYSTEM ATV 150/125
Test the CDI unit using the CDI tester.
Operate the CDI tester by following the Ignition Coil
CDI Tester
manufacturer`s instructions. Spark
Window
Connect the special connector to the CDI
coupler and CDI tester.
Switch Range Good CDI Faulty CDI
1. OFF No spark
2. P No spark
Spark Plug CDI Unit
3. EXT No spark Good spark
4. ON1 Good spark No spark
5. ON2 Good spark No spark
If the CDI unit is faulty, replace it with a
new one.
Blue/Yellow Yellow/Brown Light Green/Red
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 xK range for the Sanwa Tester. Green /Pink Black Green Green /Yellow
Use the xK range for the Kowa Tester. Unit: K
Probe Green/ Green/ Light Green/ Blue/ Yellow/
Black Green
(-)Probe Yellow Pink Red 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/
5-50K 10-50K 10-50K 10-50K 5-50K
Yellow
Green/
0
Pink
Light Green/
0
Red
Blue/
50-200K 50-200K 50-200K 50-200K
Yellow
Yellow/
0 5-50K 5-50K 5-50K 5-50K
Brown
Note: The readings in this table are taken
with a Sanwa Tester.
15-5