2000' ZX9R Valve Adjustment Symptoms?
 

How can you tell if your valves need adjusting? Lately, I've been hearing a little noise, only while driving, from my engine. Also, taking it up to redline, doesn't seem as smooth as it used to be. It seems to be struggling a bit taking it up to the high RPM's. I am wondering, how do you know when the valves need adjusting? The engine is not making the chattering noise when I throttle it up in nuetral, but when I drive it, is seems to chatter a little and is worse when cold.

What happens it the valves don't get adjusted?

Thanks!

RE: 2000' ZX9R Valve Adjustment Symptoms?
 

Check valves at 26000 miles. Valves out of adjustment = lose of power and rattling noise from engine. Kaws are knowen for a ticking sound so that could be it. Also it could be your cam chain tensioner is worn out, my zx7 was ticking alot and I replace the tensioner and it fix the problem. 85.00 oem part.

RE: 2000' ZX9R Valve Adjustment Symptoms?
 

The odometer just turned to 28,000 miles, so you're probabaly correct. I am not the origional owner of the bike, so I'm not sure of the history. I think my cam chain tensioner needs replacing also, that's probably the other noise I hear and has been like this since I've owned it.

Thanks for the Help!

RE: 2000' ZX9R Valve Adjustment Symptoms?
 

Yeah what he said : also you can't judge anything by free revving the bike.the only way to get good results is while the motor is under load.

RE: 2000' ZX9R Valve Adjustment Symptoms?
 

I'll have to get them adjusted, but the questions is.. Should I tackle it or take it in. I've done bike's that didn't have shim's before, so I'm really thinking of doing it for financial reasons at this time. I know there is a chart to follow to figure out what you need, and that's what I would have to analyze a bit before I make my decision. Either way, it's time to get them adjusted.

Thanks!