Shimano Ultegra 6700 shifter repair/rebuild

Wheels of Happiness

I used to have these shifters:    6700 and 6800.   I never had difficulty with these shifters.  But this is a guide in case something turns out bad.  It turns out with ridgid training one can do this.  One needs good memory and good spatial logic

Do not try this.  Let the mechanic do this repair.