[Dick Boneske]

pfilean is correct. You bend the little tab on the swivel end of the float to set float drop. You bend the portion of the float arm nearest the float to set float level. Additionally, sometimes, you have to bend that portion nearest the float to make it perpendicular to the needle body, so you're not pushing the needle at an angle. This is not usually necessary, unless you're using a new float that has never been adjusted.

Remember, do not put pressure on the needle/seat when making the adjustments.