原帖由： oldturkey03 ,
L E Will, it is possible that this is caused by really bad carb settings. Your air/fuel mix is potentially way off. Download the service manual [http://www.ifixit.com/Device/Suzuki_FA50_Moped|from here.] Pull out the spark plug and take a look at the face. see if it is light bown and dry, or black sooty. Check your carb settings. If your carburetor is okay and all the settings are correct, you do want to do a compression test to see if it is possible that your rings are leaking. Also, do check the reed valve and make sure that it functions properly.