28mm, not 27mm
22mm is the float height for this carb
22mm keihin carb
Factory carb settings for a 84 Honda 200s
42 pilot 150 main for stock Keihin butterfly carb.
32mm keihin with accelerator pump
36mm Keihin
It has 50 hps
The 1983 FXSB came stock with a Keihin B28E 38mm carb, which is a butterfly-type, that is to say a non-CV (constant velocity) type. CV Keihins didn't appear until 1988.
A single cylinder 2 stroke 249cc engine with a Keihin PWK36 carb.
Keihin pvk 36mm with electric choke
The 1983 FXSB came stock with a Keihin B28E 38mm butterfly-type carburetor. First use of the Keihin CV carb was in '89 for Sportsters and '90 for all big-twins.
You will need to go into your settings to change them. If you are having difficulties, it is best to let a mechanic do the work.