I have been having an unusual amount of flex in my handlebars so I decided to install polyurethane riser bushings. I really didn't expect it to be much of an issue to replace, but I can't seem to get to the bolt heads. There's a cover right below them. I looked in my service manual, but it just says to remove the bolts to remove the lower mount, it doesn't mention how to get to the bolts with that mount/cover in the way. Any recommendations would be appreciated.