it sounds to me like something is loose. your clutch cable may be loose or your flower nut may be loose. loosen the screw that holds the flower nut in place, pull the clutch handle in and lock it, and then back the flower nut off a quarter turn at a time until you feel more resistance. but before you do that, check the screws on the clutch arm cover. this is the cover on the left side of the bike where the clutch cable attaches to the clutch arm. those screws could be loose as well. i have had problems with the screws before. most likely something is just loose.