Ok. Let me get this straight.
I tried first gear wheelies on my pulsar 200. I slow down to about 10-15 kmph, hold the clutch, raise the throttle to about 8500-9000 rpm and slip the clutch. The bike pops a wheelie, but only momentarily.

I don't know if I am shifting weight properly, but then I am only seated when I try to pop it. Anything I can do to keep the wheel up in the air for longer?