went through a few things:
cleaned pipe
repacked muffler
cleaned the clean air filter and oiled how I like it (a light coating of 2 stroke oil, i've tried the spray on stuff and don't like it, to restrictive)
adjusted float to 16mm (was about 18 to 19 mm)
changed to premium unleaded pump fuel
put in 40 slow jet
left in the 165 main
put needle in 3rd position
carb has #6 slide
bike now idles
, air screw is 1 3/4 turns out. Much better low end power. The bbuuwwwggg has gone away. strong mid-range and top end still screemin
. Now to put a few miles on it and see how it does real world versus my back yard.