Thanks for the tip about BMW tool 5551212
I also did the same thing as for the Guzzi, a short wrench ( less leverage ) tight as I can.
Ive read about pulling the fuse for the Throttle calibration.
Same idea for the valve adjustment, find left TDC , repeat for right side and i bought a set of gauges, gaskets, plugs, oil/air filter from Beamer boneyard.
Im all set Except for that wrench