make sure your glow driver is charged
fresh fuel
Remove needle valve and blow a bit of fuel through to purge the line reset needle to about 2 or 2 1/2 turns out or RICH
set the airbleed screw using a large T pin or small paper clip as a feeler guage or 50% open
Check your tank INSIDE AND OUT for air leaks LOOK closley
Refil tank Hold your finger over the carb inlet and flip it over wide open.
, WITHOUT a glow driver on, until fuel just gets through the line to the carb.
Close the carb to a setting approximating a high idle or just about 3/16 of an inch open
flip it over FAST no glow driver 3 times
Apply glow driver and start as normal
reset the high speed, needle keep it on the rich side

here is a link to a little guide you can print out and keep in your field box

http://www.smrcc.net/Tips/Engine/2-stroke_engine.html