Clymer manual says that timing must be set by using the MoDi-TeC unit. Not sure if a GS911 can do this or not.
In this particular case, I would say the CLYMER manual is incomplete - the BMW shop manual gives a few more hints - but none of these 2 manuals gives you all the options:
1) You need a dial-gauge into plug-hole of cylinder 1 (front) to set the static timing of hall-effect-sensor plate. The Motronic will do the rest for advance when engine is running based on various sensors data.
2) The static timing is 6 deg BTDC and this corresponds to 0.24mm (0.0094 inch) of piston travel BTDC (hence need for a precise dial gauge attachment device). Normal engine rotation is counter-clockwise view from front of bike to find point BTDC.
3) To rotate HALL-effect-sensor plate at correct position (to trigger), you either need: (A) Dealers computer, (B) a GS911 , (C) reach into the relay-electrical box to get the connector of Hall-effect-sensor
The menu in GS911 are pretty much self-explanatory, but if you need a few hints and want to use the method in (C) above, then you need to read a technical document that was done by a few of our members here. Document is in menu of this web site ("tools" ... "technical"). A direct link to correct file below - you just need to click on image to start download of this MsWord document:
P.S.: All models and years of the K1200 "brick-engine" (K1200RS/GT or K1200LT have the same static timing value stated above. However, when these various engines are running, Motronic is coded differently for each and you would see the timing advance to vary a bit (in real-time values or in real-time log). This is expected as they have either: different camshafts, different compression ratio, different throttles-bodies...