Been a long while since I had to adjust valve clearances on a motorbike, my Buell was Hydraulic tappets and the Ducatis were desmo shims so no tappets for twenty odd years 
I done mine about 1200 miles ago, quietened it down a bit but still a bit noisy for my tastes 
done some more investigating and found some 1200's (mines an 04) had the spring type cam chain adjusters like the 1150, so I ordered the updated version from Motorworks 
great service by the way. Fitted them last week (ordered both sides but only the nearside is an updated version) and the engine changed it's tone completely, rattle gone but it seemed to develop a lumpy,knocking bottom end 
So I decided to check the valves again this morning and found I had adjusted them on the tight side
not all, but some and some were 20tho instead of 30tho 
I spent a bit more time this time and got them spot on and the difference is incredible, balanced the throttle bodies as well after that and the bike sounds and goes better than ever 
lesson learned "don't over tighten valves to make your 
quieter" 
I done mine about 1200 miles ago, quietened it down a bit but still a bit noisy for my tastes done some more investigating and found some 1200's (mines an 04) had the spring type cam chain adjusters like the 1150, so I ordered the updated version from Motorworks great service by the way. Fitted them last week (ordered both sides but only the nearside is an updated version) and the engine changed it's tone completely, rattle gone but it seemed to develop a lumpy,knocking bottom end So I decided to check the valves again this morning and found I had adjusted them on the tight side not all, but some and some were 20tho instead of 30tho I spent a bit more time this time and got them spot on and the difference is incredible, balanced the throttle bodies as well after that and the bike sounds and goes better than ever lesson learned "don't over tighten valves to make your quieter" 
