Seno
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posted August 12, 2012 12:57 PM
 Edited By: Seno on 12 Aug 2012 20:58
quote:
Ahem.....those are EURO colors my man...you won't see these in the US....  There's nothing wrong with your bike....ditch the ECU flash from whoever you got it from...get that Brock's flash,and PCV mapping...you'll be good to go!Simple.Your bike's okay......I like that black one...she's a keeper Bro!
That sucks, kind alike the purplish one... Oh well. As far as the ECU, Stock ECU does the same thing... so it has nothing to do with he flash. Had the ECUleashed one which was the worst piece of shit flash available, now I have Ivan's... Happy with the ECU, will change the sprocket tonight to see if that fixes the issue....
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Shane661
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posted August 12, 2012 01:25 PM
It is not a map issue. That would only be a bandaid, at best. Changing sprockets does not require a remap, lol.
Shane
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CajunBoyz
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posted August 12, 2012 02:02 PM
Had a couple of friend noticed the same thing when trying a 43T..???
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bigwil
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06 zx 14 turbo stage 3
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posted August 12, 2012 02:11 PM
ive got 43t vortex smooth as silk
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Seno
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posted August 12, 2012 03:46 PM
FIXED IT!!!! shit I wanted a new bike.... Went back to stock 42T and no more issues..... Wish I knew what the hell it was. Again, my bike was PERFECT until I plugged a different ECU in then all of a sudden the bucking began.... Now with a sprocket change its fixed. It has to be something related to the counter shaft sprocket & KTRC even though my bike always has KTRC off. Go figure....
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Viper
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posted August 12, 2012 03:56 PM
If it's doing it with the 43 shouldn't it do it with the 44 too? Just wondering
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Seno
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posted August 12, 2012 04:51 PM
I don't know bro, I don't have a 44 to slap on and check. It has to be something to do with ECU swapping, that's when it all started..... Previously I had the 43 tooth on for 6+ months without issue.
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smokinZX14
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posted August 12, 2012 04:54 PM
Edited By: smokinZX14 on 13 Aug 2012 00:58
I'm thinking the ECU has to have a learn mode .. Lets say you changed tire size with a new set of rubber for your bike , Kawi had to know that might happen so they have some kind of relearn mode so the T/C can work correctly .. It possible that it might take more than a few miles on the bike for the ECU to auto correct for the tire size or gear change .. That would include a few rides and a few restarts so the ECU can learn .. I know a lot of cars have this but i'm unsure if our bikes do .. What we do know is RPM and wheel speed are sent to the ECU , If the ECU see a different number for some reason it must have some way to auto correct .. Just your rear tire getting worn the ECU well see different info coming from the sensors .. We all thought that turning off the T/C turned it completely off , only to find out that it really didn't turn it off completely ( aka safe mode ) ..
Now maybe the reason i'm not feeling this is because i drag race , I run the bike and turn it off , i do this 6 to 9 times at one race day or night .. Maybe this is all that is needed to reset the ECU to the gear change .. I do ride the bike on the street almost everytime after my track days and have never felt what you guys are feeling .. If Shane or someone has the time it would be good to see what would happen if they rode the bike daily for a week and see if the ECU Corrects it's self over time .. Just a guess on my part guys ..
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Wheelie
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posted August 12, 2012 05:07 PM
I went to the track today and played around trying to get it to do what y'all are talking about. At 4700 it has a "slight" gurgle but not a miss, feels more like a tuning issue at that rpm, 17-51 gearing. Brock does have another map but I have the first one...
wee
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Seno
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posted August 12, 2012 05:28 PM
Small throttle openings in first & second give the most "feel". Basically if you get to 3500-5500 RPM in 2nd and coast or just give the bike enough gas to maintain the speed it will surge forward... It was disturbing getting on a parkway off ramp at 50 with a passenger and feeling it surging... Or cruising around town and feeling it.... just damn irritating.
Hopefully one of the "tuners" comes up with a fix for this. I did 600 plus miles the past 2 weeks and nothing changed....A learning mode would make sense, but maybe there is a way to trigger it. Thanks for the ideas guys!
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kaw-rick
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posted August 12, 2012 06:02 PM
im running 17-41 right now and dont feel the surging. but ive never had my ecu out.
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Shane661
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posted August 12, 2012 06:15 PM
It's not surging...more like a misfire, spark/fuel kill. It's not a matter of whether it exists...more a matter of why? And only on certain bikes...
Maybe I need to video it...
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Seno
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posted August 12, 2012 06:31 PM
Feels like something is shorting out
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zx13r
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posted August 12, 2012 06:33 PM
Do you think it has something to do with the ECO?
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blue07
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posted August 12, 2012 11:40 PM
Okay...will do....thanks Smokin! 
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blue07
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posted August 12, 2012 11:46 PM
"It is not a map issue."...and how do you know this?Like I said...I've got two ecu's...a stocker,and a Brock's.BOTH perform great.Gearing...42,and 43 ....BOTH performed great.Mapping....first one....bucking at particular rpms and speed....revised map....runs great.I don't get how you're saying it's NOT mapping.THat's what corrected mine...mapping...fueling.NOT ecu flashes or gearing changes.(not that it 'couldn't' be)....but not with mine.
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LeoVinceZX14
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posted August 13, 2012 02:23 AM
Strange that is doesn't seem to happen for taller gearing...
quote:
im running 17-41 right now and dont feel the surging. but ive never had my ecu out.
+1
Shane:
My on road miles sample is small so far (<100 miles), but mine has run perfectly in all gears up to 6k. Very interested to see what you find out ultimately to be the issue.
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blue07
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posted August 13, 2012 02:29 AM
"Maybe I need to video it."...that would save a lot of guessing...
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Seno
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posted August 13, 2012 03:23 AM
Edited By: Seno on 13 Aug 2012 11:26
No idea what it is from, but changing back to 42T and its gone.... Have Brock's map, custom map, 0 map etc... It did it with all of them. Change sprocket and it is gone. Like Smokin said
quote:
We all thought that turning off the T/C turned it completely off , only to find out that it really didn't turn it off completely ( aka safe mode ) ..
It is getting a signal from something and trying to fix an imaginary problem... unfortunately it has created a different one. If it isn't broke, don't fix it... Yup, I am done... Not fucking with it until a "fix" is found.
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Greggy
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posted August 13, 2012 04:28 AM
Seno I'm glad your onto this, as people are taking more notice now than when I raised these same issues back in February. There is something going on with the 14R and gearing changes as my bike bucked bad with a 16T front sprocket but is smooth as silk with the stock 17T sprocket. I would love to go back to a 16T front but not with the nasty side effect.
It felt like a fuelling and/or ignition issue to me, like it was trying to cut power for some reason but there simply was/is no reason. I really hope KHI get onto this and work out a fix. If their stock ECU isnt perfect then we need an upated one, and it should be something they fix for free.
Cheers!
Greggy
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Seno
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posted August 13, 2012 06:53 PM
quote:
Seno I'm glad your onto this, as people are taking more notice now than when I raised these same issues back in February. There is something going on with the 14R and gearing changes as my bike bucked bad with a 16T front sprocket but is smooth as silk with the stock 17T sprocket. I would love to go back to a 16T front but not with the nasty side effect.
It felt like a fuelling and/or ignition issue to me, like it was trying to cut power for some reason but there simply was/is no reason. I really hope KHI get onto this and work out a fix. If their stock ECU isnt perfect then we need an upated one, and it should be something they fix for free.
Cheers!
Greggy
Shane deserves all the credit on this one... I was stumped until he made this thread. Well I rode 60 miles tonight & it was absolutely perfect and smoother than it has ever been thanks to the sprocket swap & Ivan's ECU flash. BTW just for reference, my TPS voltage at idle was low 0.61 (manual says 63-65 is normal), might get motivated and adjust it then put the 43T on again to see if it has any effect on stuttering..... but not till I have nothing else on my list of to do's. It's funny how 3 days ago I was at the dealer asking when the 2013's were coming in.... now I am happy as a pig in shit all over again.
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08smokes
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posted August 18, 2012 04:25 PM
Bump. Just installed a 16T front on the 14R today, left the stock 42 in the rear and it's sputtering/hesitating at low RPM's in low gears. Bike is all stock otherwise. Boo. =\
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joseph702
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posted August 18, 2012 07:06 PM
Sounds like a bad ecu. they read mph front and rear andn most traction controle has learn mode. im guessing it cant
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Seno
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posted August 18, 2012 07:31 PM
quote:
Sounds like a bad ecu. they read mph front and rear andn most traction controle has learn mode. im guessing it cant
If that is truly the case many of us have bad ECU's.... If enough of us get our local dealers to call Kawasaki Technical line (Dealer only support line), they might come up with a fix. Otherwise we have to wait until one of the "brains in the business" figure out a solution to this problem.
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wildnphx
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posted December 20, 2014 10:48 PM
Was a fix ever found for this? I have a 2014 only 3 months old and just went one up on the rear and have the exact same issue in 2nd gear 3500 to 4500 rpm it is very noticeable.
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