Ah, well, the bike really is noting too special, just a Huffy beach cruiser-style bike I picked up fairly cheap since a local bike shop was clearing out some inventory for the winter. The engine is 48cc, but I'm not too sure on most of the other details of it. A friend of mine got me interested in building a bike like his, so I had him order me up the engine kit. The only modifications we have made so far (since I haven't finished my build yet) was to replace the stock rear rim with a new one that had a better coaster brake and replaced the spark plug since my friend explained it was more than likely a cheap piece of junk and that I would see better performance with a different one.
I haven't gotten a chance to ride my personal bike yet as we are still assembling it now, but I did ride my friends bike for about 3 weeks as a commuter to and from work and had a blast. I don't have any pictures of either bike, but I'd be happy to take some once I get mine finished off.