Pull your plugs a compare them to the pics at:
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.htmlThis should give you an indication if you are running rich or lean.
It also helps if we know what year model you are working on. There are different carbs across the years, for example.
Temporarily mark your throttle grip so you can tell when you are at 1/8, 1/4, 1/2, and 3/4 throttle. At these throttle positions different parts of your carb are dominating of the mixture. To do a complete carb adjustment you'll have to read your plugs after operating at each of these settings.
Finally, do all the other tuneup items before matching the carb tune to those settings. Plugs, points, timing, cam chain, tappets, and clean air filters need to be at ideal conditions. Carb sync verification is wise, too.
