I have a 2000 r6 with just over 20,000. I have heard that you need to get them serviced after this many miles. This is my first yamaha so my question is, what is done at the service. I have had Ducati's and I know the valves get adjusted. I can do a regular tune up myself, oil, air, carbs, plugs, wires, so what goes on with the 20,000 mile maintence? I am getting ready to take a 1200 mile trip to the blue ridge parkway and want this in top shape before that. How much does it usually cost? Also, I think my fork seals are shot because the front dips hard o braking and almost feels like it bottoms out. Any thoughts?