I need to replace the primer bulb on my Ryobi 775r weedeater. Any ideas on how? It appears that the carb plate has to be removed... surely not.

Do you have the new replacement bulb yet? Many bulbs are simp[ly pressed in and snagged out. Never replaced one on a Ryobi but take a close look at your new bulb. You may be able to just deform it and press it in place. Try prying the old one out with a small screw driver