if your urine is clear, you are filtering out too much water, meaning there is excess of that. thats what the kidneys do, filter out the stuff that is not needed. so clear urine can mean one of two things that i am aware of - an over abundance of water or an underutilization of water by it not circulating in and out of cells to remove the waste byproducts of metabolism.
with clear urine, at the least you are over working your kidneys for no good reason and at the worst you are not cleansing your cells properly meaning that waste material is building up in your tissues. of course, urine that is too dark or smelly is not good either, but it should have some color in it.