It is easy to check your valves. A little bit harder to adjust them. If you don't have a service manual for your bike you may want to get one. It explains the procedure for checking and adjusting valves, step by step.
If you are going to own one of the modern four strokes, it is very important that you learn how to do your valves.
You can also do a search. There is a lot of information on how to adjust your valves on this site.
A little tip. On your particular model, the most important thing to remember when adjusting your valves is to torque the cam caps to the proper torque using an inch pound torque wrench. DO NOT OVERTORQUE THEM.