07 600RR. high pitch noise gets higher and louder with rpm? - 600RR.net
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post #1 of 14 (permalink) Old 07-02-2011, 02:12 PM Thread Starter
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07 600RR. high pitch noise gets higher and louder with rpm?

BIKE: -2007 HONDA CBR600RR
-Just a little over 8000 miles

USED FOR: -in town commuter riding average 3500-5500 RPM's
-highway riding average 6000-8000 RPM's
-occasional highway pulls to 13k or so RPM's

MODS: -JARDINE RT1 Duel Tip Carbon Fiber slip on exhaust pipe
-POWER-COMMANDER 3 USB DYNO tuned with new exhaust
by professional tuner

Problem: -Very loud high pitched engine noise.

description: -there is no abnormal engine noise that i cant tell, notice, or hear at all anything below 5500rpm's. it gets noticeable around the upper 7k RPM.
the higher i rev the louder the sound gets and the higher the sound pitch gets all the way to 13,000 RPM's. i simply do not ever like to redline my bike by personal choice.
i was thinking maybe the CCT but, there is absolutely no abnormal engine operational noise that i can discern with my naked ear at idle and low RPM.
everything that ive read so far about the CCT problem is that there would be a rattle at idle and would go away after about 4500-6000 RPM's.
the best way to describe the tone and pitch of the sound would be to imagine being next to a construction site and hearing a very fast spinning circular saw cutting through a really hard dense board. (didn't want to say wood) lol
in a little bit today im going to put the bike on its stands an take a video recording of me starting the bike while its cold, (will be the first time the bike has been started in about 30 hours) and try to capture the sound while the video shows the gauges, plus what I'm doing the throttle and clutch.

I'm open to any and all "EDUCATED" ideas or possible solutions.
thanks for the space and interest. I'm stumped. Just hopping that its nothing major. i do not think its a failed or failing bearing.

Last edited by My4ateurv8; 07-02-2011 at 02:50 PM. Reason: spelling error
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post #2 of 14 (permalink) Old 07-02-2011, 07:28 PM Thread Starter
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bump. im about to make the video
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post #3 of 14 (permalink) Old 07-03-2011, 09:27 AM
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Did you end up getting that video?
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post #4 of 14 (permalink) Old 07-04-2011, 12:24 PM Thread Starter
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ok i finally got the video uploaded to youtube. ill get the link posted up as soon as its available

Last edited by My4ateurv8; 07-04-2011 at 01:47 PM.
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post #5 of 14 (permalink) Old 07-04-2011, 01:54 PM Thread Starter
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post #6 of 14 (permalink) Old 07-05-2011, 08:56 AM
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Dunno mate, does the noise still happen in gear with the clutch held in?

Definitely doesn't sound good though...
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post #7 of 14 (permalink) Old 07-05-2011, 09:17 AM
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Something similar happened to mine, after I put on a pc and had everything adjusted.... The engine would get abnormally hot really quick, along with the high pitched noise, there was also a whooshing sound. After I took everything apart, I found my cct (manual by ape) was way way too tight. If yours is stock then it's auto adjusting.... If youve recently messed with your cct and your engine gets hot fast and you hear the "wooshing" sound, it's probably that.
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post #8 of 14 (permalink) Old 07-05-2011, 12:58 PM Thread Starter
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the noise happens in or out of gear, with or without the clutch.
the CCT is stock. ive never gone inside the engine on this bike.
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post #9 of 14 (permalink) Old 07-05-2011, 01:46 PM
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just to be fun

do you have one of these!



RIP PHATTY
05/08/1980-10/19/2010
VOTE RON PAUL 2012
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post #10 of 14 (permalink) Old 07-05-2011, 05:55 PM Thread Starter
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nope. no mechanical forced induction mechanisms.
although i did install a diesel truck turbo onto my 98 eclipse gsx!!!!
but for real, anyone have any ideas of what the weird high pitch noise could be?
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post #11 of 14 (permalink) Old 07-06-2011, 04:28 AM
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I would be looking at the clutch mate, look for anything loose or overly worn...
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post #12 of 14 (permalink) Old 07-11-2011, 11:24 PM Thread Starter
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ok i figured it out. i took most of the bike apart starting it every time i took something different off. turned out that the noice was the front engine mounting bolt loosening up when the bike would get hot and cold with hi revs. i pulled the bolt out cleaned all the threads then reinstalled it with red locktite. now she is fixed! im just super happy it wasent an inturnal thing.
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post #13 of 14 (permalink) Old 07-11-2011, 11:46 PM
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awesome, glad to hear it wasn't anything major


Black 2006 600rr l SOLD Dec 2010
07 600rr - sold Aug 2011
07 white/silver 600rr - sold
Current: 2015 1000rr
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post #14 of 14 (permalink) Old 07-12-2011, 03:29 AM
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Good to hear mate.
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