I need advice. I am rebuilding my '87 XR600R. I need to remove the crank for the new rod. The Clymer manual indicates the crank should be removed by a dealer. I know the crank has to be pressed for the new rod but what should I do about removing the crank from the case. I do not want to damage the case but I like to do as much on my own as possible. Also, any advice on replacing bearings (when it is necessary and how to remove). Thanks for your help.