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Throttle sto screw

Posted by KarlM on Aug 11, 2012; 10:44pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Throttle-sto-screw-tp4026893.html

I have a 71 CB 750 K1.
I bought a set of " backup " carbs on line.  I actually bought 2 sets but have only received  one.
My shop manual shows a " throttle stop screw".  I am reading about using a vacuum gauge and how to set and sync the carbs. Neither set of carbs ( 2 sets) have ANY throttle stop screws.
My carbs are great but I want to sync with a vacuum gauge .  They are stock Kei*Hin carbs.  Both sets.
Can anyone tell me why I have 2 sets of carbs and not one throttle set screw between them.
Confused!
Thanks
Karl