You'll have to find the right technique fro your bike .
Usually, it's full choke to get it running, then go to the half detent on the choke, while you put on your helmet, jacket, etc .
Then close it until you get a smooth idle somewhere around 1300 rpm .
Then ride like this for a mile or two, then fully close the choke .
You'll need to find what technique works for your bike, that's what I do on three of my R65's .