If you get the Clymer banshee manuel it will tell you basicly everything you need to know about the rebuild look on amazon,com for one I think I got mine for like 15 bucks shipped. and it is preatty detailed with pics and descriptions of all the parts. and kinda a rule of thumb is anything you take apart allways put new gaskets in place its just insurance! if you reuse gaskets some may be ok some may not if they are torn or worn replace! besides do you really want to go through the motor again after the rebuild because of one leak that you have to take off 4 parts to get to!