Hi all. I would appreciate any insight on my issue. 2007 Yz450F I'm in the process of rebuilding the top end. I do have a decent mechanical background. I ordered 1 Timing Chain off the OEM parts section of rockymountain while I was ordering my other parts needed for the rebuild. Here's my current situation. I am at the point where I have the cylinder and all bolted down ready to put the cams in and put the cam chain around them but it simply seems like the cam chain is just not long enough to fish around both cams. I have fought it for an hour seeming like every which way I could try and cannot get both cams under the chain and positioned correctly. -The bike is at TDC on the compression stroke. - the cam chain is not bound up or kinked at the bottom - I even went and picked up another cam chain from my local dealer to see if there was a difference. There was not. - the tensioner is completely out not even bolted on right now I am very frustrated at what normally is a simple procedure for me. Any help would be greatly appreciated.