i have tried to remove these carbs but just can't seem to get them off. i have an actual Honda CBR900RR service manual and have followed the steps, but with no result. i tried using a screwdriver style pry bar but i didn't apply very much pressure in fear of cracking the magnesium valve cover, i had thought about putting a piece of aluminum plate over the valve cover and try more pressure with the pry bar but i thought that magnesium will crack easily, is there any other suggestion? THANKS!!