I have a '99 CBR 600F4. A spark plug blew out of the cylinder head a while back and I finally got my bike put back together again. I had it pulled apart and put back together once, but realized my timing was off and had to pull it apart again to fix the timing. Anyway it starts and idles fine, revs up fine, but there is a stupid amount of valvetrain nosie. Not just a little bit like it needs to warm up, but an excessive amount. Maybe i'm not getting oil pressure or something? Or maybe I didn't properly torques all the bolts? I made sure that all the shims were put back in the correct spot. Is there anyway that I can check for oil pressure? Or any other ideas why i'm getting so much noise?

 

CCT noise? pull the valve cover back off and check the cam chain tension. You checked that the valves were in spec while in there aswell right? Also you have the cams in the right order? I dont think it would run if you didnt, but just throwing thoughts out there.

 

I thought that it might be cct noise, but i don't know exactly what that sounds like. I feel like an idiot for not check the valve clearances before assembly, both times. Although i did not think that it would be an issue since I had the valves professionally adjusted two months before it happened. I know that the cams are in the right order. How do I know if the cct is bad?

 

Your cam chain will be loose.

 

mine did the same thing after assembly, my timing was still a tooth off. got it right and then the valve noise went away. mine sounded like a little diesel engine before i got the timing right

 

On the crankcase cover, there is that removable timing cover, below that is a plug. That's where you can check oil pressure with a gauge. Should be 71psi at 6k rpm. No oil pressure light? If you say it gets worse with more rpm, in theory you should have more oil pressure. I would consider a loose cam chain first.