Hey, brand new to riding, have a couple questions - ZX6R Forum
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post #1 of 14 Old 01-17-2017, 10:05 PM Thread Starter
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Hey, brand new to riding, have a couple questions

I have rode dirt bikes for the past 3 years and have been wanting to get a street bike. So I went and passed the MSF course and then began looking for a bike. I found a good deal and bought it, its a 2013 ZX 636. It had 1200 miles when I bought it and iv'e put on around 600 since then. The previous owner already had a two brothers slip on exhaust on the bike.

The problem i'm having is the bike is spuddering only in first gear and only when I give it a lot of gas on the start. Also the exhaust is popping at various times when decelerating. I asked the previous owner if he ever tuned the bike when he put the exhaust on and he said no, so i'm wondering what I need to do to stop this. I'm pretty sure its something to do with the computer not knowing how much gas it exactly needs to give because he just slipped the exhaust on. Am I right? Oh yea and its happening around 4,000 rpm. Thanks for the help and I can provide a video of it happening if you need me to.
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post #2 of 14 Old 01-17-2017, 10:37 PM
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Hello and welcome!

You need to install some block of plates to reduce/eliminate that popping which is caused by installing the aftermarket exhaust. The block off plates eliminate the PAIR valve, which is what is actually causing the popping sounds.

Here are the ones I used on my bike: https://www.revzilla.com/motorcycle/...00-versys-1000
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Last edited by Strider; 01-17-2017 at 10:43 PM.
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post #3 of 14 Old 01-17-2017, 10:37 PM
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Originally Posted by byron979 View Post
I have rode dirt bikes for the past 3 years and have been wanting to get a street bike. So I went and passed the MSF course and then began looking for a bike. I found a good deal and bought it, its a 2013 ZX 636. It had 1200 miles when I bought it and iv'e put on around 600 since then. The previous owner already had a two brothers slip on exhaust on the bike.

The problem i'm having is the bike is spuddering only in first gear and only when I give it a lot of gas on the start. Also the exhaust is popping at various times when decelerating. I asked the previous owner if he ever tuned the bike when he put the exhaust on and he said no, so i'm wondering what I need to do to stop this. I'm pretty sure its something to do with the computer not knowing how much gas it exactly needs to give because he just slipped the exhaust on. Am I right? Oh yea and its happening around 4,000 rpm. Thanks for the help and I can provide a video of it happening if you need me to.
I'm guessing the following two things.

1. "Sputtering" may be caused by the ECU (some 13 models have faulty ECU's that start with a low idle then die) or needing to adjust (raise) the idle speed.

2. A slip on exhaust does not require a remap. The popping noise is caused by PAIR valve that reintroduces air to burn off any remaining fuel for cleaner emissions. A simple fix is to install block off plates.

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post #4 of 14 Old 01-17-2017, 11:29 PM
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JD41 is on the money. Your sputtering could be the bad ECU a lot of the '13 models had. If u know anyone with a 2013 or newer model, ask them to let u borrow their ECU for a day or two for testing purposes.

The popping on deceleration is normal. The bike will always do that. U just wont hear it with the original exhaust.
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post #5 of 14 Old 01-18-2017, 08:18 AM
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@jd41 is spot on with the response. I am only chiming in because I had a 2013 with a Two Bros Black Carbon Series for 19XXX miles.

The sputtering you are hearing is 100% normal. Since it is a "shorty" can and has shorter tubing you hear a lot more of the sputtering caused by the unburnt fuel. I bought my 2013 ZX-6R brand new with 1 mi on it with a two bros exhaust. I didn't get a servo buddy or block off plates and have had 0 issues. I recently went with a hindle exhaust only because it is a high mount exhaust and really want some sexy woodcraft rearsets. The two bros exhaust or any shorty exhaust I am pretty doesn't allow for the rearsets due to the L-bracket. Though I believe some people on here have gotten Vortex to work with the two bros.

As far as the sputtering when giving her the beans, what TCS mode are you in? If you are in 3 that is the rain mode and will interrupt power delivery with cold tires. Additionally, are you allowing the bike to warm up fully? Typically around 140-141deg it will be sufficiently warm, and you will here the IDLE decrease in noise.

Lastly, as far as the ECU, check the warranty as previously stated. I know I had starting issues with my ECU and when they warrantied it out around 4k, she started right back up.
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post #6 of 14 Old 01-18-2017, 09:10 AM
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Originally Posted by PinoyRider88 View Post
As far as the sputtering when giving her the beans, what TCS mode are you in? If you are in 3 that is the rain mode and will interrupt power delivery with cold tires. Additionally, are you allowing the bike to warm up fully? Typically around 140-141deg it will be sufficiently warm, and you will here the IDLE decrease in noise.
This is likely the cause of the spudder but even on option 2 or 1 you may get TCS kicking in on cold tires in first gear. It's completely normal. I wrote up a thread in which details some issues with the 2013 including this:

How to fix common 2013+ issues (Stalling or cold start issues, hard shifting)

And can confirm, block off plates will stop that popping on deceleration, but once again, completely normal.
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post #7 of 14 Old 01-18-2017, 01:48 PM Thread Starter
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Originally Posted by PinoyRider88 View Post
@jd41 is spot on with the response. I am only chiming in because I had a 2013 with a Two Bros Black Carbon Series for 19XXX miles.

The sputtering you are hearing is 100% normal. Since it is a "shorty" can and has shorter tubing you hear a lot more of the sputtering caused by the unburnt fuel. I bought my 2013 ZX-6R brand new with 1 mi on it with a two bros exhaust. I didn't get a servo buddy or block off plates and have had 0 issues. I recently went with a hindle exhaust only because it is a high mount exhaust and really want some sexy woodcraft rearsets. The two bros exhaust or any shorty exhaust I am pretty doesn't allow for the rearsets due to the L-bracket. Though I believe some people on here have gotten Vortex to work with the two bros.

As far as the sputtering when giving her the beans, what TCS mode are you in? If you are in 3 that is the rain mode and will interrupt power delivery with cold tires. Additionally, are you allowing the bike to warm up fully? Typically around 140-141deg it will be sufficiently warm, and you will here the IDLE decrease in noise.

Lastly, as far as the ECU, check the warranty as previously stated. I know I had starting issues with my ECU and when they warrantied it out around 4k, she started right back up.
I think it is the traction control. I usually put it on 2, but today I turned it off completely and no sputtering whatsoever. As far as the warranty ill have to check if the previous owner got it serviced. He barely rode it and it only had 1200 miles on it though. Thanks for all the help guys.
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post #8 of 14 Old 01-18-2017, 01:57 PM
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Keep it on 1, that's what I do. 2 seems to intervene quite a bit - but 1 saves me when my tyres are cold. Did wonder why you'd need traction control on a 600 when I bought the bike but after hearing people say they couldn't catch me on cold tyres I realise it's been helping me out occasionally... Still lets you slide the rear a bit too!

As for popping noises with after-market cans - I love it. You couldn't pay me to add block-offs to my Arrow. It's half the fun on deceleration!

A play on words, or words on play
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post #9 of 14 Old 01-18-2017, 03:52 PM
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Keep it on 1, that's what I do. 2 seems to intervene quite a bit - but 1 saves me when my tyres are cold. Did wonder why you'd need traction control on a 600 when I bought the bike but after hearing people say they couldn't catch me on cold tyres I realise it's been helping me out occasionally... Still lets you slide the rear a bit too!

As for popping noises with after-market cans - I love it. You couldn't pay me to add block-offs to my Arrow. It's half the fun on deceleration!
ARROW EXHAUST? Is it the full competition TI or just a can?

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Hindle Exhaust(Can), SHOGUN FS, ASV shorty levers, 8000k HID, Renthal C/O, BMC Airfilter.
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post #10 of 14 Old 01-18-2017, 05:45 PM
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ARROW EXHAUST? Is it the full competition TI or just a can?
Just a can with a Pinebox link pipe...fell in love with Arrow with my Triumph. Got one coming for the new RS too
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post #11 of 14 Old 01-18-2017, 06:51 PM
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Just a can with a Pinebox link pipe...fell in love with Arrow with my Triumph. Got one coming for the new RS too
The exhaust is strong with this one

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Hindle Exhaust(Can), SHOGUN FS, ASV shorty levers, 8000k HID, Renthal C/O, BMC Airfilter.
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post #12 of 14 Old 01-19-2017, 08:18 AM
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As for popping noises with after-market cans - I love it. You couldn't pay me to add block-offs to my Arrow. It's half the fun on deceleration!
That's what I always thought. I hear a lot of people want to get rid of it, but I love it.

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post #13 of 14 Old 01-19-2017, 10:38 AM
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Keep it on 1, that's what I do. 2 seems to intervene quite a bit - but 1 saves me when my tyres are cold. Did wonder why you'd need traction control on a 600 when I bought the bike but after hearing people say they couldn't catch me on cold tyres I realise it's been helping me out occasionally... Still lets you slide the rear a bit too!

As for popping noises with after-market cans - I love it. You couldn't pay me to add block-offs to my Arrow. It's half the fun on deceleration!
Why would you be telling a new rider to use traction control setting # 1?

And if 2 is intervening for you too much, you might want to reconsider your riding style. I run track at level 2 and it hardly ever kicks on for me.

THINK before you post. The consequences of your advice can get somebody hurt.
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post #14 of 14 Old 01-19-2017, 10:45 PM
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