Gen 5 Exhaust - Kawasaki ZX-10R.net
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post #1 of 12 Old 09-20-2017, 07:18 PM Thread Starter
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Gen 5 Exhaust

Might be a silly question, but.... What are the odds that there is no FI or check engine light after removing the stock Exhaust and installing a Werkes GP pipe? I did leave the servo in under the seat, but obviously removed the cables and stock Cat. Converter & muffler.
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post #2 of 12 Old 09-20-2017, 07:28 PM
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100%
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post #3 of 12 Old 09-20-2017, 07:38 PM Thread Starter
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So you're saying no lights come on when remove all that? The older bikes the FI light came on right away.
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post #4 of 12 Old 09-20-2017, 07:57 PM
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Victors is on it! 100%.

You need to read back 13 years worth of threads on this topic. The older bikes did not come on right away. Not sure where you're getting your info. But the answer to your original question is still 100.000%


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post #5 of 12 Old 09-20-2017, 08:09 PM
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post #6 of 12 Old 09-20-2017, 08:51 PM Thread Starter
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Interesting... So then, does the ECU assume the servo is wide open, or closed? Does that affect rich/lean conditions? Hopefully getting in to Guhl next few weeks to have it flashed & tuned, just curious how much is affected in the meantime.
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post #7 of 12 Old 09-20-2017, 08:52 PM Thread Starter
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SkyDork, my 2006 636's both did. I just Assumed the zx10's did as well.
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post #8 of 12 Old 09-20-2017, 09:07 PM
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Ugh. This thread is headed to the trash bin soon, I can tell. So much is wrong here.

If you leave the servo in place, the ECU doesn't know anything is different and no light turns on. Your 2006 636 was the same way until you took the servo out. The ECU doesn't assume anything other than the system is just fine. Therefore there's no fueling differences from the ECU. The airflow will be different and the stock tune is based on what it senses from the O2 readings and is based on the exhaust valve and catalytic converter in place.

You also didn't remove the stock "exhaust". You removed the stock muffler. If you replaced the whole exhaust then you had to screw with the O2 sensor and would cause all sorts of shit to happen. The "exhaust" is the complete system made up of the head pipe, catalytic converter, and muffler. You didn't remove that, only part of it. And if you left the servo in place, the ECU still drives it and you won't see anything. So,
Quote:
"What are the odds that there is no FI or check engine light after removing the stock Exhaust and installing a Werkes GP pipe?"
= 100% no



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Last edited by SkyDork; 09-20-2017 at 09:16 PM.
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post #9 of 12 Old 09-20-2017, 09:54 PM Thread Starter
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Actually, you're wrong, the FI did set just from removing cables on the 636. I know, I was there. I didn't remove the servo for 4 days, until the servo buddy came in the mail. Like magic, the FI light went off.

And my bad for offending you with the term "Exhaust" as in everything but the "Header", unless you prefer "manifold". 99% of people do not purchase that component, as the performance vs. Cost is not worth jack to them. Therefore, we call mid pipes and slip ons "Exhaust". You sound like you may need a snickers good sir. Or maybe a nap. Enjoy whichever you choose. ?
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post #10 of 12 Old 09-21-2017, 09:30 AM
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Quote:
Originally Posted by eviltrievel13 View Post
Actually, you're wrong, the FI did set just from removing cables on the 636. I know, I was there. I didn't remove the servo for 4 days, until the servo buddy came in the mail. Like magic, the FI light went off.

And my bad for offending you with the term "Exhaust" as in everything but the "Header", unless you prefer "manifold". 99% of people do not purchase that component, as the performance vs. Cost is not worth jack to them. Therefore, we call mid pipes and slip ons "Exhaust". You sound like you may need a snickers good sir. Or maybe a nap. Enjoy whichever you choose. ?
I did need both the snickers and the nap. More so just the nap!

The 636 issue is something different of course, but it doesn't make sense that the servo buddy removes the FI light when it just replaces the servo drive unit. So if the servo was still there and you got the FI light on, then the servo buddy is just emulating what that units does. But that's a discussion for another time. Carry on!
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