Originally Posted by wbedient
Be careful swapping CDIs... some won't swap. My buddies 93 DR350 dirt model didn't fit my 95 street model.
Yep, there are definitely differences between the years and models. Make sure the one you are buying has precisely the same number and color of wires as the one you have (I don't think comparing numbers printed on the CDI - under the rubber mount - is sufficient).
When I wanted a spare CDI for my DR350, I just kept looking on eBay til I found one. I don't hear of them going out very often (neither coils nor voltage regulators nor stators, either). But I have all of those bits, just in case.