Tuck,
Do you have a cross reference for the part #s search (plug in a Part # and it tells you what model it fits)?? A friend use to work at the Kaw Dealership, and they had this feature, in addition to Team Green recommended specs??? Also in regards to the clutch, be sure you plates are in decent shape, otherwise this will cause issues with the Rods length. If none of the sources above can get you the push rod, PM me, I believe I have an 88 250 motor at the shop.