If you ever get dirty, (mud, sand, etc.) your clicker is probably going to get stuck. All you have to do is remove the screw on top of the clicker knob carefully, and clean it out with air, or some carb cleaner (anything similar), a shot of wd40, and out it back together. Easy fix. I rubber band a plastic bag over the reservoir when I go get dirty, to prevent me from having to clean it all the time. Hope this helps!!