Hi Mitch,
I don't own the 1K Fazer but it's little sister the FZS 600.
Looking at your pictures and explanation I think you have highlighted a problem and a solution.
Good hit mate, I'm sure lots in here will be doing your mod on their 1K Fazers and giving themselves to a more smooth running and trouble free Exup valve mechanism.
Sound advice, and you can not argue with the tide mark