Lexx Quiet Core Tip on Stock Exhaust - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

 3Likes
  • 1 Post By DPelletier
  • 1 Post By Paul Gardner
  • 1 Post By Paul Gardner
 
LinkBack Thread Tools Display Modes
post #1 of 10 Old 12-15-2016, 07:37 PM Thread Starter
1st Gear
 
Join Date: Nov 2016
Location: Olympia, WA
Posts: 33
Question Lexx Quiet Core Tip on Stock Exhaust

Just got my KLR last month. The PO did what I would consider a "botched" job of attempting to ream out the stock tailpipe to get a better sound, and actually cut out the pipe end with a screwdriver and left it sitting in there rattling around. I managed to get the pipe end out of the silencer, but of course now there's a big ol' hole back there and no spark arresting qualities - not to mention a little loud.




So I bought a new Lexx Quiet Core Insert for about $32 with shipping from Rocky Mountain MC that is designed to fit the Lexx silencer.



It slides right into the stock silencer, and I figure I can just use the three screw holes in it along with some stainless sheet metal screws and some copper based ultra high heat Permatex, and return the pipe to something more like stock with spark arrestor, and hopefully a little better sound than stock.

Anyone have any advice on whether this seems like a good idea or bad idea? I hate to be cheap, but I feel lucky to have a wife that was OK (barely) with my purchase in the first place, so I don't want to "crap too close to the porch" by immediately buying a $230 silencer for it.

Also, the hex bolts on the exhaust shield are frozen/rusted and I can't get them off. The exhaust shield is rattling because it's not tight enough. I bought some fiberglass cloth to fold and stuff between the exhaust shield and pipe just to keep it from rattling. Good idea? Bad idea? Am I a total hack?

Anyone think it would cause any problems with back pressure, or mixture, or have a reason why I shouldn't do this? Any input would be appreciated.

Last edited by Tom Schmitz; 12-15-2016 at 11:58 PM. Reason: Google Images fail to load due to the long URLs; ported to my flickr acct.
Paul Gardner is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 12-15-2016, 08:55 PM
4th Gear
 
Join Date: Aug 2010
Location: Kelowna, B.C.
Posts: 2,344
Your silencer mod should work fine IMO; the fiberglass cloth idea is a hack job (Hey, you asked!) :-) those header bolts will snap off if you try to remove them; I replaced the headers on both my Gen1's with SS Gen2 headers from ebay.....$40.00 I think. Others have removed the guard and used header wrap.

Cheers,
Dave
Paul Gardner likes this.
DPelletier is offline  
post #3 of 10 Old 12-15-2016, 09:05 PM Thread Starter
1st Gear
 
Join Date: Nov 2016
Location: Olympia, WA
Posts: 33
Thanks Dave!
Paul Gardner is offline  
 
post #4 of 10 Old 12-16-2016, 07:30 AM
5th Gear
 
Join Date: Jan 2011
Posts: 4,333
Then . . . there's always the Tractor Supply Company muffler . . .
Damocles is offline  
post #5 of 10 Old 12-16-2016, 10:05 AM Thread Starter
1st Gear
 
Join Date: Nov 2016
Location: Olympia, WA
Posts: 33
Tractor Supply muffler? Do tell... Or is that a commentary on my penny pinching?
Paul Gardner is offline  
post #6 of 10 Old 12-16-2016, 12:18 PM
4th Gear
 
Join Date: Aug 2010
Location: Kelowna, B.C.
Posts: 2,344
it'd be best to pull that original internal perf pipe right out if you can.....not sure how much bigger it is but there is a chance you could have some restriction with the double perf....especially if it's close in size.

Dave
DPelletier is offline  
post #7 of 10 Old 12-16-2016, 12:21 PM Thread Starter
1st Gear
 
Join Date: Nov 2016
Location: Olympia, WA
Posts: 33
The factory pipe end that I pulled out looks much like this one from Lexx - it has the same looking perf thingy that went in there. I'll check it to see if they're the same diameter and length. But, I'll have to wait until Christmas when I get that gift back - it's all wrapped up now. I'll let you know how it works out, and post a picture.
DPelletier likes this.
Paul Gardner is offline  
post #8 of 10 Old 12-16-2016, 12:23 PM
5th Gear
 
Join Date: Jan 2011
Posts: 4,333
Quote:
Originally Posted by Paul Gardner View Post
Tractor Supply muffler? Do tell... Or is that a commentary on my penny pinching?
Hear tell it's been done.

Don't know about any USDA-approved spark arrestor, however.
Damocles is offline  
post #9 of 10 Old 12-16-2016, 12:25 PM Thread Starter
1st Gear
 
Join Date: Nov 2016
Location: Olympia, WA
Posts: 33
Yeah, I do want the spark arrestor. I want to be able to ride in the woods here, and I'm in WA State where we do have summer and fall fires so it's critical that I have that.
DPelletier likes this.
Paul Gardner is offline  
post #10 of 10 Old 12-16-2016, 12:51 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,572
Garage
It's here > http://www.klrforum.com/1987-2007-wr...y-muffler.html

Tractor supply probably still sells it, but all referred links are old and dead. This 'mod of infamy' was making the rounds quite a few years back. It's basically this one >https://www.amazon.com/MUFFLER-John-.../dp/B00L3MBFGW

No spark arrestor, I'm sure. In fact, given the application, there may be a spark generator...

I suppose you could probably stick an FMF arrestor in it. $40 muffler, $40 spark arrestor.

A thing of beauty and a joy forever.

Tom

Tom [email protected]

“She went out slowly. The way she did it hadn’t been learned at business college.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


Sting like a butterfly.

Last edited by Tom Schmitz; 12-16-2016 at 01:00 PM.
Tom Schmitz is online now  
Sponsored Links
Advertisement
 
Reply

Tags
exhaust, pipe, silencer

Quick Reply
Message:
Options

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










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Lexx exhaust DC155 2008+ KLR650 Wrenching & Mod Questions 26 06-09-2016 10:05 AM
Laser Pro Duro or other quiet exhaust Grinnin 1987 to 2007 Wrenching & Mods 24 07-29-2014 03:14 PM
New HMF Tip on my '08 KLR stock exhaust jerryv13 2008+ KLR650 Wrenching & Mod Questions 12 04-10-2013 07:15 PM
exhaust tip supplier?... uk trailer guy 1987 to 2007 Wrenching & Mods 7 06-23-2011 05:37 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

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