rattleing at 5500rpm - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 13 (permalink) Old 09-24-2005, 12:06 AM Thread Starter
 
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rattleing at 5500rpm

hey just recently i've noticed a ratteling at about 5500 to 6000 rpm. no powerloss or anything and its not the key ring or anything. it seems to be louder when its not up to temp. any ideas?
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post #2 of 13 (permalink) Old 09-24-2005, 07:21 AM
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Re: rattleing at 5500rpm

Quote:
Originally posted by Meat_Shield
hey just recently i've noticed a ratteling at about 5500 to 6000 rpm. no powerloss or anything and its not the key ring or anything. it seems to be louder when its not up to temp. any ideas?
you'll have to poke around and see if any nuts and bolts are loose somtimes things work loose on new bikes.

Build a man a fire, and he is warm for a day. Set a man on fire, and he is warm for the rest of his life.

Everything I know I learned from killing smart people and eating their brains.
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post #3 of 13 (permalink) Old 09-24-2005, 07:47 AM
 
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Try to isolate where its coming from.. could be anything...



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post #4 of 13 (permalink) Old 09-24-2005, 08:19 AM
 
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It is most probably your CCT. It's a common problem with Hondas. Does it stop rattling at around 6k? Check the windscreen first though, mine used to buzz at around 5-6k rpms unless I grabbed it with my hand. If it is the CCT, I suggest replacing it with the APE manual instead of the Honda CCT (J23) because it will most probably start rattling again eventually.
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post #5 of 13 (permalink) Old 09-24-2005, 09:10 AM
 
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I actually have the same problem with my F4. It starts at around ~5200 and ends at ~5700. I don't have any power loss or anything but I hate sitting there and hearing the sound. It's hard to describe, so I am not sure if it is the same thing you are getting. It's just a slight rattle or tinking sound, but pretty fast so it seems to be related to the engine.

If it is the CCT, is there any down side to it doing this? Like chain wear or anything?
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post #6 of 13 (permalink) Old 09-24-2005, 10:49 AM
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does this CCT problem end up happening to EVERY cbr600s?
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post #7 of 13 (permalink) Old 09-24-2005, 10:50 AM
 
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Originally posted by Z_Fanatic
does this CCT problem end up happening to EVERY cbr600s?
During a certain year range.. virtually everyone..



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post #8 of 13 (permalink) Old 09-24-2005, 11:31 AM
 
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You don't have to replace the CCT. There are detailed instructions on this board on how to "fix" the problem. Search on "tensioner", go back about a year to 18 months.
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post #9 of 13 (permalink) Old 09-24-2005, 03:45 PM
 
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Quote:
Originally posted by Mikespike2
I actually have the same problem with my F4. It starts at around ~5200 and ends at ~5700. I don't have any power loss or anything but I hate sitting there and hearing the sound. It's hard to describe, so I am not sure if it is the same thing you are getting. It's just a slight rattle or tinking sound, but pretty fast so it seems to be related to the engine.

If it is the CCT, is there any down side to it doing this? Like chain wear or anything?
Yes, that's the CCT.

The APE manual CCT is only $50 and installation is quite easy. The APE is better then the Honda J23 part because it won't crap out like the J23.

The CCT does NOT rattle on every CBR, and it isn't related to what year your bike is.. but it is a common problem. Some go after only a few thousand miles, but others never have any problems with their CCT.
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post #10 of 13 (permalink) Old 09-24-2005, 05:38 PM Thread Starter
 
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hey thanx for the info, i had suspected the CCT. and yes it does stop at almost exactly 6k rpm. its been doing it for about a week maybe a week and a half, i need the bike for at least the next 5 days. can u see anything going wrong with it till then if i leave it as is? oh and one last question. the bike is only 5 months old, could this be covered under the warrenty? if so i can drop it off b4 work and get it done for free
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