help with identification

just picked this motor up yesterday. started ripping it apart before I took pictures, but hopefully someone can let me know what it is from the pics.

I am just getting interested in motorbicycling. I was given an old grubee skyhawk a few months ago which was missing several parts, so it sat in the shed. I found a donor bike at the scrap yard and decided to start building. Its not done yet but here are a few pics. I have a grubee starfire 55cc in it right now, but I plan on putting the 66cc in it when I rebuild it. sorry for the pour quality photos

I forgot to mention that the red motor in my first post is a friction drive bike motor that mounts on the rear tube of the bike. the guy I got it from said it was from the 1970's made in japan, but I cant find any markings other than a serial number