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.
The Yamaha YZF-R1 2000 5JJ1 DENMARK 105JJ-300E2 parts lists consist of forty-eight schematics.
This parts-list page (COWLING 2) contains the most products with fifty-nine listed parts.