The fifteen Xt660r 2004 5vk1 Holland 1c5vk-300f3 Camshaft & Chain component parts are all listed in this schematic.
Of all the components used in this assembly the Camshaft Assy 1 is the most expensive.
Some items from this specific schematic: Decompression Assy, Chain, Pin, Decompression Lever, Bolt, With Washer.