Yes, Id expect them all to be coloured the same. Im now concerned that my problem might be more than cosmetic!
Seriously, that set of carbs has always been a bugger to start the bike when cold, but a gem when hot/warm.
the other set had od running symptoms- both sets had Keyster kits fitted but made the bike run differently.
This set has slight hesitation at 3.5 to 4k but pulls after that effortlessly- I only do about 70mph max on it- mostly 50 mph around the lanes- I did about 70 miles on it today and generally was v pleased with its running.
If one carb is weak then I can only guess the needles too low and that would be caused by the tosser who put the circlip in the wrong groove...I have them off again..
It might also explain the reluctance to cold-start