Since you are posting in the AVL section, I assume you have an Electra. These have a disc brake. There is no adjustment. If the brake is sticking you have a safety problem that must be addressed NOW! Sometimes the lever pivot gets gummy. Take off the lever, clean the pivot pin and the hole in the lever it goes through, lightly grease the pin and reassemble. If this does not fix the issue you have a caliper and/or master cylinder problem. You must take this to someone familiar with hydraulic brake systems for repair. It will involve dis-assembly of the system for cleaning. Depending on the extent of the repair you are looking at about 1 to 2 hours of shop labor.
I am having an issue with the brake lever returning to position to shut the break like off. A friend of mine looked at it and said that most brake levers have an adjustment nut on the brake cable at the lever. Can some one post a picture of a 2009 AVL brake lever so I can compare it to that on my Bullet Military?
My front brake light switch died a long time ago. I just pulled it out and now apply rear and front at the same time to make sure the light shines.