Ok according to http://imgur.com/p6DMT
your are running a bit rich fuel wise. Which is ok for break in, a couple of tanks or so. To lean the fuel mix at the carb raise or lower the needle by where you place the clip on it. Most folks are about the second notch down on the needle from the top notch opining on the needle where the clip goes. with a N.T. carb.
Raise the needle is richer lower the needle is leaner.