i took the carb apart and cleaned it, and its running better now.
however, my chain somehow became very loose on a ride this morning, and i know nothing about tightening it. sorry if this is a dumb/frequently addresseed question--i did a few searches, but didnt understand enough to fix it, so i figured i'd ask. any help i can would be appreciated--im pretty much mechanically challenged and now that i'm not at school, i dont have my usual resource of moped boys to ask. if you could point me in a general direction, that'd be sweet.