You can put grease around the threads of the bleeder to cut down on air entering or escaping when the bleeder is open. Wipe off the excess grease after closing the bleeder valve. I usually use a syringe to remove almost all of the fluid in the reservoir and replace it with new fluid before bleeding whether pushing or pulling the fluid through the system.
Remember, you're reading this on the Internet and it was written by a guy who can remember stuff which never happened.
2014 KTM 1190 Adventure R
2008 KTM 300 XC
2008 KTM 690 Enduro