I was looking for another cdi, but they can be expensive, when I found a cheap one for a honda dio, I bought it, as a zx50 is basically a dio clone. When I found the plug was different I was faced with an option of put it aside and not use it, or, try to figure it out. I found out that there are two basic types of cdi, a/c fired or d/c fired. I don't know much about them, but it seems if your cdi is a/c fired, you can buy one that is a/c fired and even though the plugs may be different you can work out how to hook it up. In my case it was a/c 5 wires, so it seems I can get any a/c 5 wire cdi and connect it. I only have one scooter so I can't try on any others. I won't be paying top dollar for a genuine cdi. Can you tell me the colours of the wires going to your cdi?
