Ok, I found the free wheel button, but when I change it back to Engine, it does the same thing... I'm still not sure what it is, it just stops in its tracks, even if it is running, and then its nearly impossible to pedal. I tried holding the decompressor cable (I held it where it nears the decompressor, the cabe broke...) and it still didn't pedal... When I move the wheel backwords, it makes a noise, like it's touching something else, but I can't see it..
Also, do I need a special cable to get to the decompressor?