1. Don't do it on a deck with gaps between the boards (don't ask me why!)
2. The air mix screw on the side of the carb has a spring, washer, and o-ring that are made for losing.
3. There's a brass washer on the main jet, it's important
4. The carb WILL come out, and go back in again, take your time
5. Have a space ready to lay out the parts, and time to take your time
6. If you have a significant other, tell them to resist the temptation to tidy up your stuff!
7. Wear gloves after you've cleaned everything and are re-assembling
8. The plate down the guts of the slider goes dimple-side down
9. All of the holes go somewhere. If you spray carb cleaner in a hole, it should, at least, drip out somewhere else
10. Wear safety glasses when spraying carb cleaner in the holes - it hurts if it gets in your eyes (don't ask me how I know!)
11. When reassembling, take the time to ensure the big spring is seated properly in the centre of the cap before tightening the screws (don't ask ... you get it!)
Good luck, it's very satisfying to ride the bike knowing it's humming because you cleaned up that bit under the seat ... said the guy with no experience!