You might want to check with the guys at www.bmwr65.org
Proceedure is the same as any engine... Two timing marks.. One static TDC and one for full advance...
Why are you messing with the timing ? Are you having issues ?
Just put a timing light on one of the spark leads and flash away... Adjust by rotating the bean can...
'03 BMW R1200CLC "Flipper"(Tis but a scratch!)
'01 BMW R1100RT "Lucky"
'91 BMW R100GS "itsnotamoneypit"
I like the wind in my face and Boobies too !!..