Re: Installing treats cdi on derbi pics

Graham Motzing /
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yeah one of my many gripes about the treats CDI's is that the machining or the metal used for the hub doesn't stay put very well. Even after lapping the snot out of it, the thing still wanted to spin- didn't help that it would backfire and have other problems when coils and CDI boxes would burn out in testing.

a key would help... maybe practice on a junk crank?

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