Athena - P400485600267 - Top End Gasket Kit 1999 yamaha yz2502000 yamaha yz2502001 yamaha yz2502002 yamaha yz2502003 yamaha yz2502004 yamaha yz2502005 yamaha yz2502006 yamaha yz2502007 yamaha yz2502008 yamaha yz2502009 yamaha yz2502010 yamaha yz2502011 yamaha yz250, manufacturers part number: p400485600267