watch the main jets. Some of them had 2 different sizes, one goes in the bottom carb and the other in the top. I forget which ones had the staggered jetting but it's worth looking at a parts breakdown.
Replace the bowl gaskets if the gasket is oblonged or they are flat on one or both sides. If not, it's likely to leak a little and because the fuel comes in from the bowl, through the passage in the gasket, then into the needle valve area, if the gasket leaks even just a tiny bit, the float level rises and can overfill the carb(s). The gaskets are cheap enough to just put new ones in.
When you put 'em back on, synchronize them. It's real easy.
Then when you fire it up, check your ignition timing, pickup timing and maximum timing as removing and reinstalling the carbs can change the position of the roller to the throttle cam, which also may change the pick up timing a little bit. Pick up timing should be zero, and timing with the engine at full idle speed should be 7° ATDC +/- 2. Usually 5-7 ATDC is about right if the motor's in good shape.
once it's all set, they purr...I mean they're one of the better idling 2 stroke motors I've ever been around.