so i've been shopping around for a top end kit for my 80cb650c, i haven't found one yet(found many complete kits, but none for just the top end) i was wondering if a top end kit for a 550 would work being that the 650 is basically the same engine? i've checked the faq and haven't found the answer there. i only really need the top end cause of the typical oil leaks with these engines. thanks in advance