Hi Jeremy, welcome to mopeds. Check out the wiki for tips on posting.
On your 103, have you done any mods to the bike. electrical or otherwise? What else can you tell us about what you have already done with your bike.
You need to learn what a lean bog and a rich bog (4 stroking) sound like.
Next, run your bike through Freds Guide: http://www.mopedarmy.com/wiki/Fred%27s_Guide
and here is the wiki article on your specific bike
99% of the time, those articles will solve your issues. (edited)