From what you describe, it sounds like you are running a little rich. To fix this, lower the clip one notch and see how it runs. If it's still rich, lower the clip one more position.
The way to tell if a bike is rich or lean is pretty simple. If the bike were running lean, it would bog like it was running out of gas and would have NO power. Your spark plug would look white in color as well. If the bike is rich, your spark plug will be black and oily, and the bike will seem to sputter and not run very crisply. The silencer will smoke a lot, too.