how do i drian the raditor fluid on my 2007 honda cr125r?

look down on the water pump cover.there is usually a small bolt with an 8mm maybee 10mm head that you just remove and let drain.it will be more in the canter of the cover than the rest of the bolts that are on the outer edges holding the water pump cover on.make sure you remove the radiatior cap so it can breath.