Thanks for all the responses!
The bike was running great for several months, and I think it might be a combination of the altitude, needing a cleaning, and the change in the weather. Monsoons are starting, and it's of course getting a lot warmer.
My wireless speedo has a serviced reminder setting (it's set for every 200 mi) and I have changed the oil three times. So, I really don't know how many hours, but I would say that if my speedo is running correctly, it's got around 600 miles on it. That sounds like a lot, hmm....
Anyways, I put a new rear drive sprocket on, I got the manic mechanic hub adaptor with a 22t sprocket, I can't wait to see what my new top speed is! Total P.I.T.A. to install, had to fiddle with the chain and tension pulleys for a while to get the chain in a good position.
I'm cleaning the carb today, looking at videos and stuff to learn how to take it apart and all that. Any good links out there for the huasheng carb?
Where would I get a smaller jet, and what would you sugguest I look for? I think I will try drilling some holes in the air box while I have it off the bike as well.
Ok, back to work, and I'll post again once I get it all back together!