I dont know if this is a good idea but it worked on my banshee and a motorcycle. I left the cap on the resivior (full of fluid), cracked open the bleeder and used the air compressor to shoot air up through the bleeder into the line. I closed the bleeder screw pumped up the brake lever a few times till it was tight and held it. Cracked the bleeder screw, air and fluid came out, closed it and repeated those steps about 2 more times. Brakes worked perfect after that. Now that worked when i put my front brake system back on from the rebuilt so my lines were dry and I pumped the lever to death and couldnt get all the air out. As soon as I put the pressure in there it was quick and easy, took about 2 minutes for both sides.
Like I said I dont know if this is the right way or if it can mess something up, I just know it worked both times I did it.