To convert your 6v point ignition system to 12v CDI system you will need the following:
1. Genuine CG125 CDI unit
2. Complete Wiring loom (I would suggest to buy a new one)
- Magnetic coil:
5. 12v Flasher
6. 12v Ignition Coil:
Remember you are changing the whole ignition and electrical system of your bike. Either do it properly or dont do it at all. The mechanic will tell you that he can work with existing wiring loom, but I would suggest you dont go for any JUGAAR. Proper good quality wiring!
Try to buy Genuine stuff........ most people dont take wiring seriously but your 125 can suffer with reduced acceleration and starting problem if not done correctly.
I'am not trying to scare you.......its a fairly simple job and any good electrician can handle it easily......all I'm saying is....please dont cut corners for this job.
For all the items I have mentioned above....you can find several tutorials online as to how to test them........ GO through them.... it will help