[flatheadmurre]

It´s not a very good idee to just use a 12v regulator on a 6v generator...a fair chance to burn the field coil and relay..

2 fairly easy options for conversion available.

1: Buy a 12v field coil and a 12v relay this will give you around 75-80% output compared to a full 12v conversion works fine most times and the only thing you have to rebuild is installing the field coil in the casing of the generator.

2: Get hold of a 56- 12v generator and 12v relay, If you don´t need points correct you use the backplate casing and armature togetter with your original front and pulley.
You will have to cut off 2 tabs from the back plate and if 48- drill the locating holes in the casing, this way you get an all ballbearing generator.

Anyone with some wrenching skills can do the conversion.

A heads up when swapping parts on generators...if you descide to use the entire housing with fields from the later generator with your old backplate and armature...there is a difference in length...and the locating notches is not in the same place...you assemble the pieces as is generator won´t charge until you turn the backplate to a correct location against field in the casing.