Yeah whats kind of unAmerican about those ebay CDIs is they all seem to be the same thing even though they are sold as everything from Dio and Jog CDIs to Lifan and pit bike and pocket bike CDIs.
There are a couple that actually claim to be for a 4 stroke and a 2 stroke bike in their title.
I don't know the first thing about CDIs but from what I have been told a 4 stroke CDI is dif from a 2 stroke CDI.
Maybe there are different CDIs but they aren't being marketed or labeled correctly?
Cheap enough experiment though.
I have a couple different boxes like this and the only difference on the outside is the wiring so I really have no idea if they are all the same thing or not.