Hi This is my first post, so bear with me. I am converting a Homelite 33 cc engine that I took out of the Homelite Bandit chainsaw. Everthing is going pretty good except with the carburetor, when I looked for the needle adjustment screws, all I could see were two recessed round rods with flats on one side. It is a Walbro carb, the only other markings were the numbers 1394 and WT 707. I will attempt to upload a picture that illustrates the problem. Is there a special tool that I need to adjust them? If so where do I find one? I hope someone can help me with this, I' stuck.