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 XT660R 2007 5VK8 SWEDEN 1F5VK-300S1 parts-list contains nine hundred ninety-five parts.
Access forty-six schematic parts-list fiches for XT660R 2007 5VK8 SWEDEN 1F5VK-300S1.