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Old 05-10-2013, 10:03 PM   #1
Donte
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Is there something wrong with my new bike?

I just bought a 09 zx6r used about 3-4 weeks ago. I recently notice that if I hold the rpms steady at 9- 11.5 thousand rpms the bike feels like im hammering and then backing off the throttle real quick(im not doing this Im holding the throttle steady). You really have to be on the bike and experience it, its hard to describe, the bike kind of lunges forward then. This only happens if I hold the rpms anywhere within that range. After 12 thousand if I hold it steady she act normal. also if I blow past that range and just red line her I don't get that feeling. The bike has a hot bodies mgp slip on pipe and everything else on the bike I believe is stock. I don't know if this is normal or I just need a remap of the ecu or power commander.
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Old 05-10-2013, 10:09 PM   #2
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have you looked over the bike? oil? the bike lunges forward? all engine mounts in correctly?
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Old 05-10-2013, 10:14 PM   #3
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Good start on thinking remap, tune, or pc. also check the throttle cables/adjustments too make sure its not loose.
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Old 05-10-2013, 10:38 PM   #4
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What gear are you in when you're holding it at that range? Sounds like you are in the meat of your power band and the throttle can be very responsive even by the slightest movement in the wrist
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Old 05-10-2013, 10:43 PM   #5
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1st or 2nd gear right? Clears up passed that rpm range?

Slip on with no pcv
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Old 05-10-2013, 11:08 PM   #6
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1st or 2nd gear? If the chain is original and it is around 15K miles. Replace the chain. Why you ask. Chains can get worn to the point of having inconsistent pitch length and can cause a surging as you describe.

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Old 05-11-2013, 12:43 AM   #7
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I think it's because You reach the starting point of the power bands.... that's where the power bands starts ... 9k and up ... maybe you just feel the jump ...kinda like a S.I civic when the vtec kicks in ..... I don't know what the I'm talking about lol .... I felt what your describing before and it's a of a feelin
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Old 05-11-2013, 12:45 AM   #8
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Quote:
Originally Posted by wtaylor View Post
What gear are you in when you're holding it at that range? Sounds like you are in the meat of your power band and the throttle can be very responsive even by the slightest movement in the wrist
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Old 05-11-2013, 06:38 AM   #9
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Quote:
Originally Posted by Umayr View Post
have you looked over the bike? oil? the bike lunges forward? all engine mounts in correctly?
I have looked the bike over, oils good, and mounts seem good.
Quote:
Originally Posted by j_e_hurst View Post
Good start on thinking remap, tune, or pc. also check the throttle cables/adjustments too make sure its not loose.
I will try to check the cables, not really sure how though
Quote:
Originally Posted by wtaylor View Post
What gear are you in when you're holding it at that range? Sounds like you are in the meat of your power band and the throttle can be very responsive even by the slightest movement in the wrist
This happens in any gear, and it could be but I believe that I am holding it pretty steady.
Quote:
Originally Posted by GREEN600 View Post
1st or 2nd gear right? Clears up passed that rpm range?

Slip on with no pcv
By pcv do you mean power commander? I don't believe there is a power commander on this bike, at least I have not found it and I have searched.
Quote:
Originally Posted by Tiller View Post
1st or 2nd gear? If the chain is original and it is around 15K miles. Replace the chain. Why you ask. Chains can get worn to the point of having inconsistent pitch length and can cause a surging as you describe.
Any gear, and I think the chain is goods its not at the back of the all of the notches. I will check again though.
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Old 05-11-2013, 08:35 AM   #10
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It sounds like an ECU/ECM issue.
Could be a number of things, maybe the TPS, sticky TBV, any number of things.

My first step would be to hook it to a computer.
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Old 05-11-2013, 09:15 AM   #11
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Quote:
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It sounds like an ECU/ECM issue.
Most possibly this.

What you are describing is what other people refer to as "surging". I have not seen it on my 09 zx6 (yet), but it is a known issue and some 2009-2011 kawi's have it. Fixable with a power commander, but have the bike checked first, just in case....


P.S.(unrelated to your issue): There is a recall out for the rectifier. Since you just bought the bike, go to kawasaki.com and throw the vin in the recall section to make sure it is needed/was done on yours. If yours is faulty, there is a good chance it may screw your stator and the recall will not cover that (speaking from personal experience).

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Old 05-12-2013, 01:30 AM   #12
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Screwed. I'll give you $300 for it.



Sounds electrica, like a TPS or something. A reflash might do it.
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Old 05-12-2013, 02:02 AM   #13
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Quote:
Originally Posted by Yanni View Post
Most possibly this.

What you are describing is what other people refer to as "surging". I have not seen it on my 09 zx6 (yet), but it is a known issue and some 2009-2011 kawi's have it. Fixable with a power commander, but have the bike checked first, just in case....


P.S.(unrelated to your issue): There is a recall out for the rectifier. Since you just bought the bike, go to kawasaki.com and throw the vin in the recall section to make sure it is needed/was done on yours. If yours is faulty, there is a good chance it may screw your stator and the recall will not cover that (speaking from personal experience).

Thank you I searched it and that seems to be the problems. also I search the VIN and nothing came up so I hope im good on the recall.
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Screwed. I'll give you $300 for it.



Sounds electrica, like a TPS or something. A reflash might do it.
I know, im screwed might as well at least get something for it.lol
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Old 05-12-2013, 02:11 AM   #14
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I still have those free joe rocket gloves if you need them.
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Old 05-12-2013, 10:27 AM   #15
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I still have those free joe rocket gloves if you need them.
What size?? lol
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Old 05-13-2013, 05:08 PM   #16
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Quote:
Originally Posted by Yanni View Post
Most possibly this.

What you are describing is what other people refer to as "surging". I have not seen it on my 09 zx6 (yet), but it is a known issue and some 2009-2011 kawi's have it. Fixable with a power commander, but have the bike checked first, just in case...
Im wanting to get a PCV to see if that does the trick. Hopefully soon
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Sure, I've been called a xenophobe, but the truth is, I'm not. I honestly just feel that America is the best country and the other countries aren't as good. That used to be called patriotism.

yeah. I thought it'd be like riding with a condescending rossi.
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Old 05-13-2013, 05:32 PM   #17
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Ummm any aftermarket exhaust?
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Old 05-13-2013, 05:35 PM   #18
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Ummm any aftermarket exhaust?
Ok nvrmind I was halfass reading it... its probably the exhaust airflow. "Back pressure" . IMO mgp exhaust are man.
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Old 05-13-2013, 05:38 PM   #19
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Quote:
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Any gear, and I think the chain is goods its not at the back of the all of the notches. I will check again though.
I don't think it sounds like a chain issue but just FYI...
Your chain will be worn out loong before you use up all the adjustment. Try lifting the chain at the back of the rear sprocket. Like you are trying to pull it up off the sprocket right where it goes around the back.
It it lifts more than the tiniest amount, your chain is worn. Not saying that means you have to replace it but you should get it checked by somebody that knows what to look for.
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Old 05-13-2013, 07:00 PM   #20
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a suggestion...
clean the fuel pump filter, sounds like the secondaries are starving for fuel...
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