Caution

While I do suggest waiting before you bottle you soda I caution (from experience) that you should not leave it out for more then 24 hours. If yeast does not seem visible then either bottle with added yeast, or I suggest bringing to 150-180 to kill anything in their and repitching some fresh yeast once it has cooled down.

You could even make a starter before hand, but to help ensure carbonation, added some yeast nutrient, or if you are in a quick fix and don't have any, just boil some yeast (cook it to kill it) and add that. That has every thing yeast needs.

E.V.