I posted this recently except my heading was specific to 2012 GS

I got zero feedback so I thought by being less specific using the title"Camheads" I'd get more views and maybe some feedback

On the RepRom under adjusting valve clearance preparatory work it states to remove the bottom stopper #! in photo

Bottom Stoppe K29_HP_R11017b_preview.jpg

Then after adjusting valve clearances install bottom stopper

My curiosity is getting the best of me and I would like to know the function of the bottom stopper. Any info would help,thanks