The Yamaha YZ450FT 2005 5XD8 AUSTRALIA 1D5XD-100E1 parts-list contains nine hundred forty-eight parts.
YZ450FT 2005 5XD8 AUSTRALIA 1D5XD-100E1 section with forty-two Other schematic pages.
To discover exactly which parts you require use the on-line schematic exploded diagram - it will even give you some idea of where and how to fit those new parts.