[header] How to adjust a compound bow [title] Locate the limb bolts. [step] Look for the limb bolts near the center of your compound bow. The limb bolts lie in large circular knobs that attach the bow's arms to the riser. 
These bolts must be manipulated to tweak the draw weight, or the amount of tension that is placed on the bow string as it is pulled. [substeps] The riser is the central part of the bow that connects to the limbs and other mechanical components.