Cam Cover Crack

Chasing a mysterious rattle / knocking in the rear engine area of my 2000, so checked and adjusting valves.
1 intake and 3 exhaust out of spec ( loose ).
Noticed what looks to be cracks on the cam cover. Perhaps just the finish on the topside as looks OK on the underside ?

 

How many miles since the last adjustment?

 

Unkown actually. Bought it this past winter.
Someone previous has been in there with all the RTV bits I had to clean out.
Bike has just 29,700 miles on it. Front cylinder valves all in spec. Only rear had those few out.

Suppose could be just casting marks because the underside didn't appear cracked.

 

right ! a common casting flaw.

 

As in, yes thats what it is type of ha-ha or need to buy another one type oh haha ?

 

I'd say that is just a casting mark, not a flaw. This was my VFR.

 

Thanks folks. I'll move along then and keep searching for the racket in the top end.

Here's a video and the noise..

 

Start with valve clearance check first thing

 

Thanks, but refer to post #1........

 

I agree with all the others: really look like casting flaws.