There was a similar discussion last week about this very topic. Pictures too. Thread title "assessing the damage". Several pages of help with pictures. In general terms, when piston is at top and BOTH lobes ( I & E) are off the buckets, is TDC. IF the lobe of either cam is pressing on a bucket , crank is out of position.
There are several thread posts as I mention with proper diagrams, to help you.
www.stromtrooper.com
There are several thread posts as I mention with proper diagrams, to help you.

Assessing the damage 08 650. no valve shims still does...
I really wouldn't ride it like that. There's a high chance you'll stick a valve through the piston. I agree, my course of action is to get the smallest shims available to try to open the gap as much as possible while I prepare to rebuilt the cylinder head