it's doubtful that it's the crank pulley. DO NOT spray WD40 on the belt. That is NOT a good idea. Make sure all belts are tensioned properly and run the diagnostics I gave you. See what you can come up with. I can't explain why, but Hondas are notorious for whistling throttlebodies, which is what I said to look for above. It's a very obvious squealing sound, it basically sounds like a microphone that's feeding back into its reciever. See if that works.