Good morning all. I have to admit to not being the worlds most gifted cycle mechanic! Yesterday I simply changed the cap on my handlebar stem. Since then there is a little "play" in the forks. I notice it when I pick up the bike via the handlebars & place it down or if I go over a slight bump. I have tightened the necessary screw but I am relunctant to overtighten. I cannot imagine for the life of me what I done wrong when changing the cap. I do not suppose I am in any danger but it is a niggly worry all the same. Any ideas anyone?