OK, here's one for all you guru's... When I start my bike (99 GS500E) it fires right up and runs smooth for about 45 seconds.  After that it sputters a little then dies.  After it dies I get a major gas pour out of the drain tube of the airbox.  This is my first bike and I have been told it may be the floats sticking in the carbs.  Any suggestions??

Later,
Damien

Flush the floatbowls by setting the frame petcock to PRIme and opening the drainscrew for a few seconds, tapping the floatbowl with the butt end of a screwdriver.  Repeat for other side.

Also, turn the choke off after 45 seconds and use the throttle to keep the rpm's up and steady (1500-2000rpm).