The valves on my nc30 seem noisy. How much noise should i expect. I can hear them clicking at idle and. Lower revs. The shop said the valve clearence was ok when it was checked. Any answers?

Only way is to get in there and have a look my friend.

There will always be noise at idle, especially if you have a stock exhaust. If it goes well, just enjoy it man.

GCD wrote:Any answers?

The answer is that they are noisy at idle, especially when engine temp is high.

As above, service it properly and enjoy it!