If you want to increase your poundage and up your draw weight then wind in your limbs bolts, if you want to decrease your poundage and lower your draw weight then wind out your limb bolts on your riser.
In this video I use a pencil to mark the bolt, as I like to only give the bolt a half turn or full turn so I can easily remember what I have done and do the same to the other bolt so they are equal.
Remember to tighten the bolts and check the bolts are fixed in place, because sometimes you can tighten underneath with the Allen key and then find out the bolt still moves. That sometimes happens on my Hoyt riser.
Find more archery videos on my archery video page.