Well, you never know how it will run after you clean the carbs. Hopefully much better. What I did with my KO was remove the carbs all in one unit. Pop the bowls off and clean every orfice with carb cleaner and air pressure. Then you can also check the float height on all 4. Check the jets to be sure those little holes are clear and be sure you put everything back where it came from. I mean, when you take the needle valves and stuff out of carb 1, put it in a container with all the parts from carb #1...same with the rest. Same with those slides, be sure they all go back into the same carb. Label the cables then you will have it right. If those are original KO carbs you have the 4 carb cables entering into the top of each. You will not really change any sync setting on cables since they will stay on the slides. If you do not mess with those big idle screws on the sides of the carbs you should not change the sync for the low idle. But once you get everything cleaned I bet the vacuum will change since you probably opened closed holes by cleaning. A sync will be needed and is recommended to get the most out of your efforts. Remember, the sync is the last thing you do...after you do points, condensors, timing, valves, etc. Oh, and unscrew the bowl on the bottom of the petcock and clean the filter screen. That may be dirty and restricting gas flow. And be sure your tank is clean and no rust or crap in there, or you will be clogging up the carbs again after you do the rebuild on them. Good luck and let us know how it goes.
