It makes me reflect, less than fondly, on my dealer's comment as I picked the bike up from some extensive warrantee service: Straddling the bike to pull away I roll the 'fast idle' lever on for the cold start. "That doesn't work", says the good natured fellow who's took my 12K USD. "No,eh?, well, I'll have a look at it at home then."
With a bit of experience in bicycle shops ( Hey! Orville and Wilbur flew , didn't they?), I drew the cable through and tightened the stop, and rotated the cam to near contact with the throttle plate. Actuating the lever gives me some 1800 rpm. Not a squeeler but enough to sustain cold idle for a few seconds while I get my kit together.
If it weren't for the yellow paint I would never have found all the p.roper points of adjustment!