2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 70Get this manual
PERIODIC MAINTENANCELUBRICATION INITIAL ITEM ROUTINE Lubricate every months with lithium-soap-based grease Check all chassis fittings and fasteners Correct if necessary Check operation Adjust headlight beams1 month months
6 months months year
Rear arm pivot Fittings and fasteners Lights and switches