Hi Kirkn-CB200 here I've got your problem and you may have the same issue I did. A small hand full of the very earlest CB200's used different jets than the rest. If over the years the carbs were replaced or rebuilt and the more common #38 & #88 jets were used instead of the #35 & #95 -- carb tuning is like splitting a hair. It can be done but you need to set the floats to almost the point were they bottom out before opening. Then set the needle pin for the main jet to the deepest setting. Then tune the air/fuel at idle best you can. It will then-with the fuel valve shut off, rev up just before the fuel in the carbs run out---but it will tune quite nice other than just how close the float level is to bottoming out. If you can locate the #35 idle jets and the #95 mains then it tunes normal. A crafty home craftsman can ream the #88 main jets to 95, but the idle is out of the question.
Another tune issue-- due to the stops on the slides being independently adjustable one needs to mount the carbs to the motor and look at the amount of opening of the slides at idle and match them first (via the idle speed adjustment screw) then check if they close at the same time- but you may have already figured this one.
It's lip to float bottom-but if you have that jet issue it's more like 22 to 24 and ream the main--what is your motor's serial #?
Another tune issue-- due to the stops on the slides being independently adjustable one needs to mount the carbs to the motor and look at the amount of opening of the slides at idle and match them first (via the idle speed adjustment screw) then check if they close at the same time- but you may have already figured this one.
It's lip to float bottom-but if you have that jet issue it's more like 22 to 24 and ream the main--what is your motor's serial #?
