Dare I contradict the forum mod
...
No, you do not have to break-in these small motors,
These motors, so far as I know, do NOT have carbon brushes or anytyhing since they are low volt motors... the brushes are the reason to break in a motor. So theres nothing to break in, breaking them in is just extra wear toward its overal lifespan.
This comment is based on them NOT haveing carbon brushes, so this post is void if they do have them...
These motors instead have very little copper fingers for brushes...