Just got a new Street Glide and need some info regarding the rpms and shifting. Searched the owner's manual and can't find what I need. Need to get a service manual asap. I have never had a tach before and want to know: 1. At what rpm should I up-shift? 2. What rpm should I down-shift? 3. What should the rpm be when at highway speed to keep from lugging engine? Any information will be greatly appreciated.