brodi3man 0 #1 Posted July 6, 2009 My 633 horse needs a new "fly wheel" cup. You can see the part here http://www.partstree.com/parts/?lc=kohler_...41&dn=022700859 Labeled 'B' My horse still has that part just all the teeth are worn smooth. Im a newb to finding replacement parts.....if any are available. thx Share this post Link to post Share on other sites