Project help please.

[KyleSCSpence]

What components and information will I need to make a 12v ac generator power a 6v dc motor?

[Kelly_Bramble]

AC to 6 Vdc converter...

[eta_nool]

if you want to build it by yourself , then you need to build this scheme :
RC_filter.svg_.png
As you can see 4 diodes ,1 resistor and 1 capacitor are the components to build AC-DC converter

and then to filter out only 6V from 12V generator i would use zener diode VOLTAGE REGULATOR
https://www.youtube.com/watch?v=8G6rGZDiEBM
(be sure to use 6V zener diode not some lower volt ones)