just wanted to thank you guys again for your help. i called the moped junk yard place and talked to a guy there named tom. he told me i needed a phav or something like that for my bike. it was more money than i planned to spend, but at least i can get my bike fixed. the carborator was $99.95 plus tax and shipping. about $120.00 with everything. i sure hope this fixes my gas leak. here's a picture of what i bought, http://www.themopedjunkyard.com/tomos/T7d233730.JPG
now i gotta find the windshield and headlight bulb.