I had a similar problem in my 240 a while back. I had random wipering. They would turn on whenever they felt like it. It ended up being moisture and grease inside the turn signal combo switch on the end of the stalk. My have a look at it. I know my 240 is a far cry from your CDI, but here is my thread:
http://www.peachparts.com/shopforum/showthread.php?t=292999

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