Thanks everyone, I'll keep the old system, then 12v. kkkk
I had to stop the bike because some government leaders decided to do some "air control" and began checking all vehicles in my city (the largest in the country), with some absurd cco values.
When this started I did not try to pass, and so many other people who have old cars and motorcycles they left their toys waiting.
This month, a group earned a law to bypass the control in vehicles until 1965 and now I have to remount the motor to ride again with my BSA.
Muskrat, very interesting that your bike came from Brazil, we don't have many of this kind here.