Join Date: Nov 2013
Location: Cooranbong, New South Wales, Australia
Changing the cam chain
For those owners of '06 new gen 1200GT: My local dealer recommended a new cam chain for my bike because it was on 70k km - with dire warnings of expensive failure.
I bought all the parts and did the job myself at home. Tips: The clutch cover is held on by about 18 Torque aluminium screws. These MUST be replaced at $61 a set with new screws every time they are removed. The first brand new screw torqued up to 5nm and snapped off. Drilled it out and tapped to next size up (8mm). Threw away the rest replaced the whole lot with Allen head stainless steel screws (torqued up to 5nm) Screws are 6mm and a set of stainless was $14. Now fine. Inspection showed no sign of real wear in the chain, or guides. No discernible stretch in chain but some side flexibility. Slight rounding of teeth on the cam shaft sprocket. Replaced, anyway. Only vital special tool needed is the BMW locking pin (goes in the hole used by the crankshaft sensor). That's a must-have. Forget the $100 coil removal tool (total waste of money) as the shoulders on the coils break because of age/heat. Anyway, coils pop off easily with a flat screwdriver. Also forget the $250 BMW pliers used to removed hose clips. I used wire strippers (90 degree return on the nose of each blade). Also, no worry about pressurising the coolant refill at the end of the job. You can refill without pressure.
Took a couple of days (doing other things while having access) including engine and final drive oil changes and No probs or issues encountered. Cost was about $500 for parts compared with $2000 for dealer to do it.