Welcome to the site :cool:
Be sure and go to your User CP and update information relating to your location, type of riding, etc. After that grab a spot on the couch and tell us a bit about yourself. How long you have been riding, what kind of riding you prefer, where you are located, etc. We will do our best to hook you up with some fellow dirt bike enthusiasts.
Post your question in the
CR / KX / RM / YZ (2-Stroke) Discussion forum and you will likely get a pile of answers.
Farmer John has many miles of experience on a KX, maybe he can weigh in with an answer.
Again, welcome to the site, and shout if you have any questions!