What is your description of squealing? A fuel pump should make some noise but more of a whirring noise, not a squeal. Whenever I heard a fuel pump squeal in a car, it was usually on it's death throws. Leave the bike with a dealer overnight so they can hear the noise.
Compare it to another EFI bike if possible. I'm betting the other bikes don't make as much as yours.
Anybody know what the fuel delivery pressure is withthe pump running? Easy check to see if there is enough fuel pressure to keep the bike running.