I've been watching this thread for a few days...  It's really bad for everyone when someone gets hurt on one of these things & I strongly advise that you get a better bike than a Huffy for a 212cc engine!!  
I did a little searching & found this for you...  
http://portland.craigslist.org/mlt/bik/5930150270.html
It's a much stronger bike for that engine & will also be worth a lot more money when you try to sell it...  (& don't forget to buy a good front brake for it).   
I also did a little research here on Oregon laws...  It seems they're very strict on these bikes & having such a large engine on a bike will probably lead to endless bad encounters with the law... any cop that pulls you over with that CA plate on it will instantly call BS on you & make you register it in your own state... (which you won't be able to do).
Your best bet is to install a small 49cc engine, lights, mirrors & a horn & try to legally register it as moped in your state.