What does the source coil do?

nd jat

New Member
Aug 10, 2008
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mandan ND
Whats the source coils relationship to the CDI? Is it a charging coil? is there other ways to test it out? Besides ohming it. Just curious to know how it work and why. Thanks to anyone that knows.
 
Is this that tough of a question!! or no one really knows other than it's needed. Can it be repaced on the stator or does it have to be replaced as a unit??