Oh sorry i thought the new Fazer. I am not aware of how the coil setup is available in FAZER. Pulsar, Unicorn, ZMA all have different type of setups. Donno how Yammy's ve.
Basic thing you got to do for DC conversion is by removing AC inlet to Headlight switch and power it with DC power that will be available from ignition (i.e key). Then you got to power 2 relays and then control it with Hi/Low beam switches. So the DC conversion is done.
This actually gives power to ur headlight from battery but battery won't be getting charged sufficiently. Kindly go thru
this thread. Repeating everything wont be simple and i may miss things too.
If you still have queries then do post it in the same thread or create new one. Either Abhi/Sajan/me or anyone who has done that job can help you.
Try to get Fazer wiring diagram so it ll be easy to figure out.