First of all, you have some nice clean bikes! Second, you didn't clean the carbs good if you didn't pull the jets and blow them out. Is there any chance you put the slides in backwards? While looking into the back of the carb when its on the bike, the cut away (half moon shape) should be facing you on the carb slide. Also, check to make sure that your choke tube (rubber hose) is connected between the two carbs.