On Sun, 26 Sep 2010 02:05:25 GMT, (Doug Miller)
wrote:

If that's not the case, then there's probably a small bit of gunk lodged in
a passage in the carburetor, or in the jet, and the next thing to do is to
remove and dismantle the carburetor, and do what you should have done the
first time you had it apart: blow everything clean with compressed air.

I use a stainless steel (SS) wire, plucked from a wire brush (held
with a pair of needle nosed pliers) to clean and clear the passages
(Venturi ?) in the carb. Look in the throat of the carb for them.

Perhaps even a wire cut from a guitar string might work. A carb
cleaner can then be used to blow the passages out.