yeah..you will need to split the case..and see what all is needed to replace all the bad parts..try these http://www.hondanlr.com/fiche_select2.asp?category=ATVs&make=Honda&year=1987&fveh=3756..i just look up your year and make..follow the links..it gives a break down of your bike..you may be able to find your parts on ebay.