my cbr won't redline. help!!!!!! - 600RR.net
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post #1 of 24 (permalink) Old 01-13-2009, 11:46 AM Thread Starter
 
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my cbr won't redline. help!!!!!!

my cbr won't redline, it stops at 14k, it's like i'm letting of the throttle.
it's a cbr 600rr 04.
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post #2 of 24 (permalink) Old 01-13-2009, 11:52 AM
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Question: Do you have a power commander on it? If so remap it with your components from the power commander website. It may be that there is a custom map on it that is prohibiting fueling at RPM over 14k.



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post #3 of 24 (permalink) Old 01-13-2009, 11:55 AM
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99% of everyone that has had this problem was fixed with a new fuel pump...

I have never had this problem but it sounds very common. Last guy that had this problem said that he found a pump on ebay for $50.

If yours is like everyone elses, it starts and runs fine but just stalls at the same RPM all the time. This is no guarantee but that's the first thing I'd look into.

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post #4 of 24 (permalink) Old 01-13-2009, 11:56 AM Thread Starter
 
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no i don't have a power commander on it.
i hadn't drivin it for about a month my battery died and i jumped started it, i noticed that it wasn't as fast as it was.my cusin had the same promblem , they changed the fuel pump and it was ok but i don't think it is the fuel pump on mine.
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post #5 of 24 (permalink) Old 01-13-2009, 11:59 AM Thread Starter
 
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it dosn't stall, when it hits 14k it's like i'm letting off the throttle. it keeps going at 14k.if i let of the throttle it go's up to 14500 rpm.
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post #6 of 24 (permalink) Old 01-13-2009, 05:04 PM
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If it's not as fast and won't go above 14K Both of those are true with a bad fuel pump.

There are plenty of other maybes... bad injector/s Faulty ECU MAybe the timings off or even your tach is damaged and inaccurate. Maybe the bearings in your motor are shot and it about to blow.

Outside of the simple stuff, None of us can figure out that much with just a description.

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post #7 of 24 (permalink) Old 01-17-2009, 10:20 AM Thread Starter
 
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out of the blue it started to redline, then it wouldn't.could it be a sensor?i don't thinks it's the fuelpump, if it was it wouldn't sometimes redline and then not redline.
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post #8 of 24 (permalink) Old 01-17-2009, 01:16 PM
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It would be easy to redline in neutral but not while moving.

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How to fix headlights... Dreamzboy's excellent write-up
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post #9 of 24 (permalink) Old 01-17-2009, 01:29 PM Thread Starter
 
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i was able to redline every gear exept 6th gear, that was before the problem.
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post #10 of 24 (permalink) Old 01-17-2009, 01:30 PM Thread Starter
 
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now it won't even redline first gear.
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post #11 of 24 (permalink) Old 01-17-2009, 01:32 PM
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New fuel pump, and stop riding like an idiot on the streets.
post #12 of 24 (permalink) Old 01-17-2009, 03:07 PM Thread Starter
 
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if it was the fuel pump it wouldn't redline sometimes and other times not redline.
i live in greece it's kind of xard not to drive the **** out of my bike. :)
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post #13 of 24 (permalink) Old 01-17-2009, 03:35 PM
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Ok peter, here's what you got. Demented gives a lot of good advice and I've had my share of trouble shooting with the 4 600rr's that I have owned.

Everything you have said on here leads both of us to believe that you have a bad fuel pump. Yet you're insisting that it is OK. Well there are other reasons that a bike wouldn't redline however none of them are common or ,for that matter, even easy to check.

If you buy a fuel pump of ebay or somewhere and put it in... it will cost IDK $50 maybe even $100 plus the time to put it in. Pretty much everything else would have to be done at a shop unless you want to spend a lot of money on the tools needed to check all the other possibilities out.

So, $100 for the fuel pump... maybe it will be fixed. If that doesn't fix it... you'll have to take it to a shop and they're gonna charge a few hundred.

If you take it to the shop and they put in a new $450 fuel pump + labor... you're going to be pissed.

You can take our advice ( and that is exactly what it is... not a guarantee) and try this or just go to the shop and have it fixed. Your choice.

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post #14 of 24 (permalink) Old 01-17-2009, 04:10 PM Thread Starter
 
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i've orderd a new fuel pump.
if i where to take it to the shop, it would cost me 700euro for the fuel pump+labor.
it's kind of exspensive here in greece. :)
i'm also changing oil,plugs.etc.. even though i changed all of thoses les than 1000miles ago. and i'm puting an aftermarket air filter.
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post #15 of 24 (permalink) Old 01-18-2009, 11:42 PM
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i agree that it is the fuel pump. same thing happened with my bike and many others like both these gentlemen have stated. you do not need to change the oil and you CERTAINLY do not need to change the spark plugs if you changed them less than 1000 miles ago...... (their service interval is 32,000 miles.....)

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post #16 of 24 (permalink) Old 01-19-2009, 10:36 AM Thread Starter
 
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i took out the spark plugs, not really in good condition, oil burnt, airfilter clean.

i guess the machanic didn't really do his job, that's why i'm tacking time off work to fix it myself.

did the bikes that had the same problem sometimes work properly?
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post #17 of 24 (permalink) Old 01-19-2009, 10:39 AM Thread Starter
 
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o yeah before i took it apart i raced a friend with 05 cbr, i tested it with him because before it started acting up the bikes where side by side, now where side by side till i hit 13800 rpm, then he takes off.

sorry i forgot to menchin that.. :)
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post #18 of 24 (permalink) Old 01-21-2009, 04:10 PM
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dude get a full system exhaust and it will redline sooo easy. thats what happened to me. and i think our cbr's have govenors so you can only go a certain speed. i think its hooked up to the speed calibration module. so if you buy a speedo healer or something that re-calibrates the speedo then you will be able to redline in 6th gear.
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post #19 of 24 (permalink) Old 01-21-2009, 04:18 PM
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Quote:
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dude get a full system exhaust and it will redline sooo easy. thats what happened to me. and i think our cbr's have govenors so you can only go a certain speed. i think its hooked up to the speed calibration module. so if you buy a speedo healer or something that re-calibrates the speedo then you will be able to redline in 6th gear.
Any bike will redline just as easily with the stock exhaust, no exhaust, or an aftermarket exhaust. There is no governor either.
post #20 of 24 (permalink) Old 01-21-2009, 04:21 PM
 
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i would say fuel pump ...
and i agree with Demented -.- are you trying to do that on the track or you wanna redline your bike in city traffic ? if its the later, you should just leave at as it is ..
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post #21 of 24 (permalink) Old 01-21-2009, 04:38 PM
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redline

it really does sound like a fueling issue. I can hit redline on my bike in everygear including 6th gear. i did have a fuel pump issue on this bike when i bought it luckily it was fixed under warrantee. kinda rare for an 07 pump to go out, but they do fail from time to time. expecially if you run it low on gas alot it kills the pump. try some brisk racing spark plugs they work great for the street.

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post #22 of 24 (permalink) Old 01-21-2009, 04:54 PM
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Quote:
Originally Posted by skyler View Post
dude get a full system exhaust and it will redline sooo easy. thats what happened to me. and i think our cbr's have govenors so you can only go a certain speed. i think its hooked up to the speed calibration module. so if you buy a speedo healer or something that re-calibrates the speedo then you will be able to redline in 6th gear.
With a bad fuel pump... your bike will run lean. When you put your full system exhaust... your bike probably needed a leaner mixture cause of the exhaust, so it runs better now.

However you didn't fix the real problem. If you want your bike to last... I'd take it to the shop and have them do a fuel pump test or , if you know how, do it yourself. That's a lot less work and also cheaper than a new engine.

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https://www.600rr.net/vb/showthread.php?t=138034
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post #23 of 24 (permalink) Old 02-06-2009, 01:11 AM Thread Starter
 
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well guys it was the fuel pump. i replaced it with a used one off ebay. it's a totally different bike now.thank's alot for your help guys. :)
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post #24 of 24 (permalink) Old 02-06-2009, 01:22 AM
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Sweet good to hear that another bike has successfully been repaired without the unnecessary costs

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