Quick Answer
Cam timing on compound bows is affected by arrow rest adjustment, draw length, and draw weight, requiring adjustments to be made in a specific sequence to achieve optimal performance.
Arrow Rest Adjustment
Proper arrow rest adjustment is crucial for consistent cam timing. The arrow rest should be positioned 1/8 inch to 1/4 inch above the bow’s nocking point when the bow is at full draw. If the arrow rest is too far forward, cam timing is disrupted, while if it’s too far back, arrow flight is affected. Use a paper tuning tool to check for arrow clearance and adjust the rest accordingly.
Paper Tuning
Paper tuning is a critical step in determining cam timing. By firing arrows at a target covered in paper, you can visually inspect the arrow’s flight pattern and make adjustments as needed. Aim for consistent, smooth flight and minimal arrow movement. Use this information to adjust draw weight, draw length, or cam timing to achieve optimal performance.
Walk-Back Tuning
Walk-back tuning involves adjusting the cam timing by loosening the cam bolts and repositioning the cam to achieve the desired timing. Start by loosening the bolts by one-quarter turn and rechecking the cam timing. If necessary, reposition the cam by one-degree increments, rechecking the timing after each adjustment. This process requires patience and attention to detail, but yields precise control over cam timing.
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