[QUOTE=Jeffatpm;904487]What's the service on the chain guides, I'm not sure mine have ever been changed..... 146K[/QUOTE

They shouldnt be a service item, but if I knew at 80000 miles what I know now, I would have changed them and saved a lot of money and grief.
When you see them they are made from what appears to be brittle plastic, so I suppose the heat and oil make them even more so