Potential First Mod/ Changing My Exhaust - Kawasaki KLR 650 Forum
KLR & Other Motorcycle Related Discussion Grab a seat and discuss whatever you like about the KLR or other related topics. Within reason.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 28 Old 04-05-2011, 09:55 PM Thread Starter
1st Gear
 
Anthony's Avatar
 
Join Date: Mar 2011
Posts: 37
Potential First Mod/ Changing My Exhaust

Im very happy with my new KLR but have an urge to do somthing to it.

I have thought about changing the exhaust. I found this one on ebay:

http://cgi.ebay.com/ebaymotors/DG-R-...Q5fAccessories


DG R-Series Slip-On Exhaust,Kawasaki KLR 650 DG-02-8650
(looks like I can get it for about 150.00 delevered)
It appears as though its a slip on. I youtubed it but could only find o series while this one is an R series.



or: http://cgi.ebay.com/ebaymotors/Lexx-...Q5fAccessories

Lexx MXe Slip-On Silencer Exhaust Kawasaki KLR650 08-11
(about 180.00 delivered)


Questions from the newb:

#1 Can I do this myself in my garage?

#2 Would I have to re-jet or anything more than just swapping it out?

#3 when I see people say re-jet, what does that mean? lol

#4 Will this in any way add ANY performance to the bike as advertised or simply make it sound a little better?

#5 what does slip on mean? just nuts and bolts?


I do plan on getting better road tires but will burn off the stock ones I have first.


All thoughts/opinions welcomed..

Last edited by Anthony; 04-05-2011 at 10:10 PM.
Anthony is offline  
Sponsored Links
Advertisement
 
post #2 of 28 Old 04-05-2011, 10:34 PM
4th Gear
 
Mark B (4)'s Avatar
 
Join Date: Sep 2006
Location: Santa Rosa, CA
Posts: 1,790
Anthony,

From what I understand, is that for every $100 you spend, you get 1 hp. I have an '05 that I have owned since it was new, and was very happy with the way it performed. I came across a deal I could not pass up, and put a LeoVince system on. (Mid-pipe, and can) My requirements were, that I did not want to re-jet the bike, and wanted performance to boot. I got that with this system, and I am very happy with it so far.

I would suggest that you look further into this system to see if re-jetting is required. I personally do not want mess with the carb to make the exhaust work for possible 1-1.5 hp gain. I am sure that other memebers have different views on this, and will pipe in (pun intended).

On the other hand, if I were wanting to put some money into the bike, I would focus on other issues that would give me a little more peace of mind. Such as, The "Doo", or at least a torsion sping. May-be progressive spings for the front end, or a fork brace.

The bike is YOUR set up, on what you want to do, this is only my $.02.

Ride safe!

MB4

PPMC # 3

Yo! To the brothers.

RIP Darin, Ben, Carey


"I am the muffin man"
Mark B (4) is offline  
post #3 of 28 Old 04-05-2011, 10:40 PM
4th Gear
 
SLO-KLR's Avatar
 
Join Date: Sep 2006
Location: Paso Robles, CA.
Posts: 1,333
Thr LEXX is a great exhaust at an even greater price. If you run it with the quiet core installed you won't need to do any carb changes.
SLO-KLR is offline  
 
post #4 of 28 Old 04-05-2011, 10:40 PM
2nd Gear
 
Join Date: May 2008
Location: Nanaimo, BC, CANADA
Posts: 269
yes you can do it. one clamp and one bolt. biggest benefit of the exhaust it getting rid of the weight of the stocker. the aftermarket ones are MUCH lighter. i have a jardine and found it made a huge difference, but i also jetted at the same time. jetting means that you take the carburetor out remove some little bits with a screwdriver and put some new little bits in. in combination with more airflow, you can manage to squeek out another pony or two. you can u tube it or search this forum for pictures. playing with a carb is a little more technical than swapping out the exhaust. you can also have a look at the 22 cent mod or klx needle instead of jetting. you might get away with not having to mess with the carb much other adjusting the mixture screw (easy to get at with out taking carb off). maybe pick up a clymer manual. lots of stuff on u tube.
have fun. thats why they cost 5 grand not 15.

02 klr - heated vest and grips, corbin dished, EM doo, petcock mod, MB PCV mod, stainless oil filter, bash plate, mayher hand guards, low mount fender, power socket, tall windscreen, jardine exhaust, jetted, studebaker shifter, magnetic plug, airbox mod, k&N, kenda knobbies, DIY pelicans, HID light
96 zx11 - bone stock - saving for a collector plate
2011 BMW f800 GS - [email protected] crash bars, altrider skid plate, barkbusters, kako, aeroflow med, heated corbin, wolfman, kenda big blocks
doc3toes is offline  
post #5 of 28 Old 04-05-2011, 11:05 PM
5th Gear
 
Join Date: Jan 2011
Posts: 4,323
If a "way cool exhaust note is important to you, go for it.

If $ 150 fits in your priority-of-modifications cost/benefit priority as number one, by all means!

Don't know if you give up the USDA Forest Service-approved spark arrestor with this can, but . . . if so, maybe the privilege of riding on National Forest roads and trails is unimportant to you.

Each individual's priorities may differ; a bash plate to protect the plumbing, and nerfs to protect the radiator/tank/plastic ranked higher in my case.

Trick exhaust? Forget about it, but that's just me. If you want your KLR to sound like a GP racer at Monza, more power to you! (Were I so inclined, I'd look into jetting fuel-enriching the mixture, but again--that's just me!)

Your bike, mod it as you see fit.

Now, about the PCV valve mod, . . . oh, never mind!
Damocles is offline  
post #6 of 28 Old 04-06-2011, 12:07 AM Thread Starter
1st Gear
 
Anthony's Avatar
 
Join Date: Mar 2011
Posts: 37
Quote:
Originally Posted by SLO-KLR View Post
Thr LEXX is a great exhaust at an even greater price. If you run it with the quiet core installed you won't need to do any carb changes.
After some you-tube videos I do think this is the one I would choose. The ebay ad says no jetting required(hoping thats true). I will think about it for a few days before making a decision.

I assume I will know right away if it needs re-jetting because of how it performs or what?

So the benifit would be a few less pounds and an extra horse or two?

Plus it would sound a little more appealing?


To Member Damocles:
I will ride this on the road 90% of the time if not more. I bought it mainly because of its good record and because it fits me well. I am 6"7 and a new rider. Although people tell me its not a beginners bike it is for me. I like that the throttle is forgiving. I weigh 260 or so but with the spring and damping setting increased I think I will put off springs, ect for now.

Also, ad says: Includes Forest Service approved Quiet Core Spark Arrestor Insert that brings sound levels down below 96db.

I know I ask alot of questions but be assured you all have helped me. Why is the KLR pipe shaped with the pregnant belly underneath while other after market pipes and simply straight?


Last edited by Anthony; 04-06-2011 at 12:14 AM.
Anthony is offline  
post #7 of 28 Old 04-06-2011, 05:06 AM
5th Gear
 
Join Date: Jan 2011
Posts: 4,323
Anthony, best wishes on your new 'zaust!

And, re-jetting ain't that big a thing, if needed or even desirable. Your mod is mild; I'd be surprised if you need more carb tuning than shimming the needle, and backing out the fuel ("pilot air," Kawasaki calls it, but it's generically known as the fuel screw) screw to about 1.75 turns from soft bottom. (A common mod at this point is drilling the slide vacuum port to 7/64" diameter, improving throttle response (positive recommendation from me).)

Only additional tweak your system MIGHT need with the new exhaust, I'd think, is a slightly larger main jet, if performance or a throttle-chop plug reading says you need it (or if new-fangled exhaust gas analysis says so). The exhaust manufacturer may have some recommendations, you can ask 'em. (CAVEAT: Plug readings (examining spark plug color after wide-open throttle operation) may not be plausible nowadays, with the horrid ethanol-laced fuel available; my experience in search of the desired coffee-with-cream color may be obsolete.)

Your questions are good, and I claim no expertise; only sharing my experience and what the "big boys on the playground" say.

Your bike; mod it to suit YOU. 96 db max and a spark arrestor do not you an outlaw and unacceptably offensive noise-polluting motorcyclist make, IMHO. As primarily a road rider, you can probably do without a bash plate and nerfs.

Again; YOUR bike: Ride safely, responsibly, and--please YOURSELF, no one else!
Damocles is offline  
post #8 of 28 Old 04-06-2011, 07:47 AM
4th Gear
 
tomatocity's Avatar
 
Join Date: Sep 2006
Location: Sacramento, CA
Posts: 2,453
I don't want to be the spoils but... how do you get better performance, and as some say increased horse power, without having to rejet. Most KLRs are running lean from the factory (the 22 cent mod corrects that). If you increase the flow of the exhaust you are creating a lean condition. I am guessing most of the KLRs already have an aftermarket air cleaner (free flowing) and modified air box (grommet removal) (free flowing).

Another concern is cost vs performance. A 685 kit can cost $300-$400. There is not an exhaust on the market than can come close to the performance of a 685 kit.

Tim

2005 KLR 685
2015 Yamaha Super Tenere ES, 5/23/2015
2012 Yamaha Super Tenere; Purchased 7/30/2011; Sold 5/23/2015
tomatocity is offline  
post #9 of 28 Old 04-06-2011, 11:25 AM
4th Gear
 
Spec's Avatar
 
Join Date: Apr 2010
Location: Gateway to Death Valley!
Posts: 1,928
Quote:
Originally Posted by Damocles View Post
Anthony, best wishes on your new 'zaust!

...

Your bike; mod it to suit YOU. 96 db max and a spark arrestor do not you an outlaw and unacceptably offensive noise-polluting motorcyclist make, IMHO. As primarily a road rider, you can probably do without a bash plate and nerfs.

Again; YOUR bike: Ride safely, responsibly, and--please YOURSELF, no one else!

Actually removing or modify the OEM exhaust does make you an outlaw. There's an EPA stamp on the OEM stating as much. There are some municipalities that use the that stamp to enforce noise ordinances.

The bigger issue is noise. Motorcycle noise is the number one complaint of the non-riding public.

Motorcyclists have to have a change of mindset, don't change out your stock exhaust. All riders are adversely impacted by those that are loud.

There's really no performance justification for a KLR anyway, you turn a 35 horsepower 400 lb bike into a 37 horsepower 395 lb bike!

No eye has seen, no ear has heard, no mind has conceived what God has prepared for those who love him. 1 Cor 2:9

Last edited by Spec; 04-06-2011 at 11:33 AM.
Spec is offline  
post #10 of 28 Old 04-06-2011, 12:30 PM
2nd Gear
 
Join Date: Apr 2008
Location: San Jose, CA
Posts: 257
Quote:
Originally Posted by tomatocity View Post
I don't want to be the spoils but... how do you get better performance, and as some say increased horse power, without having to rejet. Most KLRs are running lean from the factory (the 22 cent mod corrects that). If you increase the flow of the exhaust you are creating a lean condition. I am guessing most of the KLRs already have an aftermarket air cleaner (free flowing) and modified air box (grommet removal) (free flowing).

Another concern is cost vs performance. A 685 kit can cost $300-$400. There is not an exhaust on the market than can come close to the performance of a 685 kit.
Aren't the bikes lean on the pilot circuit and rich on the main circuit?
Human Ills is offline  
Sponsored Links
Advertisement
 
Reply

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
I was changing my oil and found this???? Paulo888 1987 to 2007 Wrenching & Mods 25 06-16-2016 05:36 PM
Changing oil hodag How To's & Tech Guides 34 01-26-2013 12:28 PM
Potential buyer of a 2006 KLR can you help trblmkr KLR & Other Motorcycle Related Discussion 17 08-10-2010 08:03 PM
Potential KLR noob $ Info Please MapMaster Introductions 2 04-01-2009 07:19 PM
Oil Changing OHRider 1987 to 2007 Wrenching & Mods 5 08-21-2008 11:34 AM

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