Hello there. I am working on a friend's (Andrew) 2003 YZ450F. He needed his valves checked and shimmed. He does not have a manual for this bike so he sas been doing the *it feels tight enough* to the oil filter and drain plugs. I have a YZ250F so I know the general specs but I want to be 100% sure. I need to know the torque specs for the: - top engine mount bolts ( all 3 ) - cam caps - drain plugs - cam chain tensioner (mounts and top bolt) I was thingking of using the specs from my 250F but I thought the cam caps atleast would be different. Any help would be greatly appreciated.