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2blueyam, ReasonableDoubt, Scot
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Exhaust/Engine Noise
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F4iGuy
 
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Join Date: April 25, 2006
Location: Arlington
Exhaust/Engine Noise - April 27, 2007, 06:59 AM

So my bike, a 2001 Honda F4i, makes some interesting noises as the RPM's near 3700. The noise is a harsh rattle that seems to eminate from in front of the riding position. The rattle continues through 4000Rpm's but then stops at about 4100Rpm's. I've worked the Rpm's up pretty high and haven't noticed it at any other point, What could this be?
Any help or suggestions would be great, Thanks!
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Nothing here
 
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Posts: 2,108
Join Date: February 20, 2003
Location: Potomac Station Leesburg
April 27, 2007, 07:29 AM

Typical vibration between two points like perhaps fairing and something hard. Without the bike on, lightly tap with your hand around the area that you think the sound is coming from and listen for a rattle. Could be pretty simple. If it is as I think, just grab some small piece of rubber something around your garage, cut it to size and wedge between the two pionts making contact. Voila! Start with the easy stuff first I always say.
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Street Bonk Bum.....
 
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April 27, 2007, 07:31 AM

i would just go over all the bolts and screws and make sure nothing is loose
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DFL
 
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Join Date: June 7, 2004
Location: Seattle, WA
April 27, 2007, 09:31 AM

Have you changed the Cam Chain Tensioner in it yet? VERY common problem on the CBR's and sounds a lot like what you are describing. Check this out: http://cbrworld.net/forums/thread/1445.aspx
I had pretty much the same thing going on with mine, swapped it out with an APE manual CCT and the problem went away.


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F4iGuy
 
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April 28, 2007, 10:53 AM

Thanks when i get back to town I'll take a better look at it.
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PewPew
 
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April 28, 2007, 03:40 PM

Your bike has 200 miles to live, at this point it will self-destruct taking out a fair portion of the area it happens to be in at that time. Good luck agent 0...


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