How do you adjust the valves on a 2001 Yamaha warrior?

To adjust the valves on a 2001 Yamaha Warrior, first, ensure the engine is cold and remove the seat and fuel tank for access. Rotate the engine to top dead center (TDC) on the compression stroke for the cylinder you are adjusting. Use a feeler gauge to check the gap between the rocker arm and the valve stem, adjusting it by loosening the lock nut and turning the adjustment screw until the proper clearance is achieved, then re-tighten the lock nut. Repeat this process for all valves, ensuring to refer to the service manual for the correct specifications.