Sorry if this is a dumb question, but please see the pictures below, and let me know if there is something wrong. I believe the part I am wondering about is the motor mount, but not sure if it has a particular name. Should there be a gap like that, or should it tight together? Hopefully the pictures make more sense. It's not loose or anything, just something I saw while cleaning up the bike a little. Just wanted to make sure there is nothing to worry about.

