Strangely worn camshaft

[aoywi]

Hello,

I have just had my cylinder head on my GS450 serviced, with polishing the cams, cam shells, adjusted valves, lapped valve seats. I decided to put in a new cam chain myself, and chose the easy way with a rivet link, so i didn't have to take apart the gearbox.
It hasn't been running very well since then, but i haven't yet found the reason why, as its an engine i have had lying around the garage for a few years.

I found out that my cylinder head gasket was leaking through the right cylinder, which was the cylinder i was having problems with, so i thought i might not have torqued the cylinder head probably. I decided to take of the cylinder head to put on a new gasket, as the gasket is probably bust by now.

I then came to this horrible sight of my newly polished cams being worn very strange... Its only worn on one half of the circle.

https://www.dropbox.com/s/cm8hwy1pv5zf37v/2015-04-29%2017.51.54.jpg?dl=0

https://www.dropbox.com/s/vadzn2wdduailc2/2015-04-29%2017.52.07.jpg?dl=0

https://www.dropbox.com/s/3xaqxb2tzt3a3xa/2015-04-29%2017.51.20.mov?dl=0

[Steve]

third picture won't show here.

.

[aoywi]

Thanks! I haven't yet figured out how to add pictures directly to the post, i am only able to add one. The third one is a video :-)

[Joe H]

Can you feel the ridges with your finger nail?
How do the cam journals look?
It only takes a millisecond to make marks if theres any debris or bad lubrication.
If there not feelable (is that a word??) I would not worry but that just me.

[aoywi]

I can feel one or two of them, the journals look fine.
I have sent them to a cylinder specialist (the people who polished the cam 500km ago), he reckons its marks from when the valves are pushed down.
He reckons its bad lubrication, so i have to check the whole system through.