Which ones are the problem, what will be left unconnected with the new carbs?There are 2 vacuum lines that come off of the pc valve on the carb.
1. A small vacuum line that goes from pc valve to 3 way joint near handle bars. One tee goes about 4" then is plugged. Other tee goes to a 5" Square black box located just below where ignition key is located.
2. Bigger vacuum line goes from pc valve to one side of charcoal canister. Also on this side of canister is line to gas cap.
On the other side of canister is a larger line that makes a bend and stops.. Also on this side is a smaller line that appears to be a drain.