After 20,000 miles the valve cover gasket started to leak on the X. At 25,000 did a valve check and replaced. During this time frame several people had posted taking their bikes to dealerships to have their valve cover gasket replaced. Now at 43,000 no problems at all. A lot of folks who took their bikes in and had it done developed leaks after a few thousand miles. Yes the job can be done rather quickly and easy to do. It is not the gasket but the person installing that causes the leaks. The factory or the dealership's method's seem to be lacking in proper installation.