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I have an atv that's not starting, I have checked and it doesn't spark at all. The coil is good (Have checked with another one). The cdi box had one of the cables melted inside of it. The stator seems to be fine.
Yesterday the atv was not starting, and it also had a poor ground connection which might've melted the cable in the cdi box. I have switched out the cdi box for another used one. and made a momentarily fix to the wire that melted the cdi connection.(The white plastic was melted from the black and red cable (stator power).
The wiring looks awful, many cables are exposed and so on. But everything is working, it just can't start. The fan, lights and starter motor is working.
The wiring is in such a mess that only the person who wired it will be able to tell you how it works. All you can do is go through the help diagnose stator sticky tests, at the top of this section of the forum. A bad earth may well kill a CDI so be doubly sure your new CDI has a good earth or it may go the same way.
Yes, this is one of the few cases I would say that a new start is needed. Trouble is if it is a "universal harness" there may be things on the bike that don't tally with the new one, so it isn't an easy fix.