I have a 03 cbr f4i 600 and it seems to sound airy, kind of like a turbo. I have been noticing a tapping noise that it now seeming to be consistant with the rpms, when i took it to the dealer about a month ago they said it was normal. Any ideas? The bike has 8K miles on it, I havent take this one too the track yet. I belive the cam chain tensioner may be bad also, which could of coarse be causing all this. There is also a random rattle I cannot pinpoint.

 

As said once before... these bikes are made to go fast, not to be quiet. that said, the CCTL could very well be ratteling. do you have a aftermarket air filter? maybe thats cause the sound like rushing air.

 

ok lets try this one more time, i have beent rying to post but i guess half the site is down or something.

I have the stock airfilter, Slip on youshi trs3 pipe. theres discoloration at the tip but not at the mid pipe which i find odd.

 

discoloration? like soot around the lip of the tip or what?

 

On the actual tip where the exhaust flows out is has a bit of buildup. Pipe is about 3 months ols if that. then the stainless around the actuall tip of the exhaust is turning the blueish

 

Mine sounds different depending on the weather. Noise could be coming from your drive train also!

 

Havent had it long yet, only about 6 months orr so and again it is my first honda. I do know I need to tighten my chain well see how that goes tomorrow, Putting on new tires. The bike had 4K miles on it and I have just under 8K now. I bought it to ride it.....

Could timing be off from the CCT?
Possiable bent Valve?
Valve springs?

Ive heard that with th4e F4I's the CCT tends to fail at about 7 or 8K miles and I did notice it starting to have a verry slight rattle. Did check that out and it was the CCT. So to sum it up I have a verry slight rattle from the CCT, An unknown random rattle cant pin point, and a tapping. Some build up on the tip of the pipe, bike does not seem to be burning oil.

 

The rattle is most likely either the cam chain tensioner from what everyone on here says [I worked at honda dealership in service for 1.5yrs and never had one go bad on anything but one suzuki but it seems to be common] or more likely you have a slightly loose valve. I've had a tiny tick when cold since about 3000miles or so. A valve that loose is something I don't pay attention too and wouldn't even be scared of not tightening during the 16,000 mile check.

 

Its the CCTL (Cam chain tensioner lifter), not the CCT (cam chain tensioner)and honestly i don't think its a problem as much as its annoying.