Personally I advise to remove the carbs the first time so you can familiarize yourself with them and the layout of the parts also makes getting the screws out the first time much easier. I would then replace the bowl screws with stainless allen head screws for ease of future work.

Wouldn't hurt to balance.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!