For what it's worth.........
The video that I got with my 01 had this to say about bleeding the air out of the system.
Fill radiator.
Lay bike on it's left side. (You'll hear the coolant gurgling through the system)
Stand bike back up and check fluid, fill as necessary. (you will find that fluid level is lower)
Lay bike on right side. (You'll hear the coolant gurgling through the system)
Stand bike back up and check fluid, fill as necessary.
Repeat until the fluid level doesn't change.