Re: Stressed out
I can't honestly think of a better engine to learn about engines on than one of the chinese 2-strokes. THey are just so simple, and you should really tear them down, at least partially, if you want them to be reliable. Another benifit of them is that you can still ride the bike..like a bike, its just a bit heavier. I've pedaled mine home a few times, its not bad.
A forum like this is a great place with all the info you could ever need about these little engines. Although I'm a recent member, I built my bike in 2009 and have been lurking here off and on since then.