Kawasaki KLR 650 Forum - Reply to Topic
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

Thread: Popping noise when decelerating Reply to Thread
Title:
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now



In order to be able to post messages on the Kawasaki KLR 650 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
11-23-2018 07:58 AM
clogan My 2009 was popping badly. I found one missing exhaust header nut, and one loose one. Ace hardware had a replacement nut, and after being properly torqued, my popping is practically gone. Still pops a bit on long, off-throttle down grades, but that seems normal.

Sent from my XT1254 using Tapatalk
11-22-2018 07:56 PM
Next Exit You have an exhaust leak possibly.
07-16-2018 12:39 AM
BikersOfTexas My 2016 does the same thing. I'm at sea level and it's just jetted lean. Took a road trip and got into some altitude then the popping stopped. I pulled the spark plug a few weeks ago because I was concerned it was running too lean but everything looked good.
07-13-2018 09:10 AM
browndogg Bolts are tight on mine,I guess its the lean condition.Its been very warm here lately,that seems to make it worse.Thx.
07-13-2018 08:22 AM
patroy75
Quote:
Originally Posted by larry31 View Post
I second that! Happened to me on my 2011. Don't forget to proper torque the nuts. Do not over tighten.
If the sound is coming from in front of you perhaps and more probably would be a loose bolt. When I install my carb kit I'll let yas know if my popping stops.
07-12-2018 08:09 PM
larry31
Popping

Quote:
Originally Posted by pdwestman View Post
You may have a burned out exhaust header gasket because of loose mounting nuts?

Aftermarket mufflers amplify & intensify the propensity of a large cylinder to do this in general. Then there is the A.I.S. to help pass exhaust emission standards.
I second that! Happened to me on my 2011. Don't forget to proper torque the nuts. Do not over tighten.
07-12-2018 04:52 PM
DPelletier Yep a functioning AIS system pops on decel by design. Completely normal. Check your exhaust just to be sure it's not amplifying the sound.

Dave
07-12-2018 04:24 PM
patroy75
Quote:
Originally Posted by pdwestman View Post
You may have a burned out exhaust header gasket because of loose mounting nuts?

Aftermarket mufflers amplify & intensify the propensity of a large cylinder to do this in general. Then there is the A.I.S. to help pass exhaust emission standards.
My vulcan popped the same way and the reason was to pass ridiculous emissions rules. It's just igniting unburnt fuel in the hot pipe which makes the greenies feel better about the planet. Rich'n it up and it will stop.
07-12-2018 03:59 PM
pdwestman You may have a burned out exhaust header gasket because of loose mounting nuts?

Aftermarket mufflers amplify & intensify the propensity of a large cylinder to do this in general. Then there is the A.I.S. to help pass exhaust emission standards.
07-12-2018 03:44 PM
patroy75 rich'n it up. Get the eagle mikes carb kit. I assume that would do it.


Edit: I like the poppin on this bike for some reason. Popping from a harley is like gun fire.
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

 
For the best viewing experience please update your browser to Google Chrome