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KLR/650 exhaust

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Hi everyone,

I'm looking to upgrade the pipe on my 06'. Has anyone done this mod latley? I ride mostly street/hwy and would like a quiet exhaust that won't need repacking right away. I need a pipe that will really flow, along with a rejet kit.

I plan on keeping the stock header pipe on the bike. The stock pipe is really heavy, would like to shave a few pounds and lighten up a bit. Any feedback on different pipe's for this bike would be helpfull. Thanks! :thumbsup:

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Hey Jbrun, Thanks for the post! Sure wish my wife would ride. She can't stand my bike. I didn't tell her when i went out and bought it! :thumbsup:

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I have a 05 KLR 650. The first thing I looked at was exhaust...after much research I found that the BIG GUN was the way to go. They are ceramic coated...inside and out. Very light and the look and finish is as good as it gets. The pipe really dissapates heat quickly...you can touch the header after only a couple of minutes, and you know how much heat those things can put out!! And it makes the bike just haul ass...sounds tough but not too loud.

It is a full system though, you mentioned you were looking for a slip on. Why stop there? Be real, this bike needs all the help it can get. Not only that...have you taken off the stock pipe and seen how SMALL the opening is at the head??? No wonder the thing can barely get out of it's own way.

Do yourself a favor...Big Gun pipe, jet kit, and open up that airbox using 2-1" airbox plugs from UNI. They come in a box of 5 or 6...only use 2!! Cut the holes with a 1" hole cutter, and pop those babies in. Your bike will wheelie at the flick of the throttle, be ready!! I have smoked a few XR-650's and all KLR's that have come my way.

Good luck! Oh, any jet kit made for a KLR 650 will do...they are all made by Dynajet anyhow!

jonathan

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Hi everyone,

I'm looking to upgrade the pipe on my 06'. Has anyone done this mod latley? I ride mostly street/hwy and would like a quiet exhaust that won't need repacking right away. I need a pipe that will really flow, along with a rejet kit.

I plan on keeping the stock header pipe on the bike. The stock pipe is really heavy, would like to shave a few pounds and lighten up a bit. Any feedback on different pipe's for this bike would be helpfull. Thanks! :thumbsup:

The restriction's in the head, both intake and exhaust and there's no fix for that. Aftermarket exhausts will gain you nothing on a KLR650. Jetting does help a little. Your money's better spent on suspension and a comfortable seat.

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Your bike will wheelie at the flick of the throttle, be ready!! I have smoked a few XR-650's and all KLR's that have come my way.

At the flick of the throttle huh? That's funny..............My SM610 Husky has 50HP and doesn't wheelie at the flick of the throttle and is lighter......... :thumbsup:

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Never owned a Husky so I won't put YOU down...however...from a dead stop, or a downshift from 3rd to 2nd, I CAN pick up the front wheel and keep it ther all the way to 7500 rpm. I have had the head ported and polished by Al Holley, and replaced the stock piston with a Wisco. Been looking for a lighter clutch basket assembly and flywheel but no luck so far.

As far as the guy who said the money would be better spent on suspension and a nice seat...couldn't agree with you more. The seat sucks and the forks are way too soft. However...ALL motorcycles will yeild a gain of a ponnie or 2 with a FULL exhaust system. Slap one on ANY bike and you will see...I think that most would agree with that.

Have fun!

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I would agree that 1 or 2 HP is available with a full exhaust AND re-jetting. Most of that is achieved with just re-jetting and I've seen more than enough dyno results to prove it. I sold my KLR a couple of years ago so I haven't been keeping up but I've never heard of porting a KLR650 head. It was talked about but everybody agreed at the time that it was impossible to do anything with the ports because of the way it's cast. I like to believe somebody finally found a way to squeeze some power out of that motor but my BS alarm is starting to go off... :thumbsup:

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Man, if i needed to modify the exhaust system and suspension to get the bike the way i want it, i think i would look at a different bike. Probably cheaper in the long run. I had the same dilemna's with my DRZ400E, not enough juice and the suspension wasn't quite what i wanted. Now i have a WR450F and have no complaints. (had the seat built up) :thumbsup:

Cheers

Chris.

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I would agree that 1 or 2 HP is available with a full exhaust AND re-jetting. Most of that is achieved with just re-jetting and I've seen more than enough dyno results to prove it. I sold my KLR a couple of years ago so I haven't been keeping up but I've never heard of porting a KLR650 head. It was talked about but everybody agreed at the time that it was impossible to do anything with the ports because of the way it's cast. I like to believe somebody finally found a way to squeeze some power out of that motor but my BS alarm is starting to go off... :applause:

There are a number of shops that do porting to a KLR650 head. Just about any decent machine shop could tackle it too. I was looking into having it done myself but cost vs performance gains not cost effective, max a 1 HP gain for 400+ bucks.... so slap the BS meter and reset it. I also installed the white Brothers carb, opened the airbox and installed the K&N filter, and threw on the PRO CIRCUIT Ti-4 exhaust. Made a huge difference in performance over stock and gained 4 HP on dyno. May not sound like much but when stock is 31 ....you do the math for performance percentage increase. Superior Dyno in So Cal.

Do yourself and others a favor next time before you want to discount someones posts ( and set your BS meter off ). Do an internet search of the subject you are about to shoot down. Might save you some red face in the future. You might also want to check out KLR 650 com for their links to engine work shops. :thumbsup:

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There are a number of shops that do porting to a KLR650 head. Just about any decent machine shop could tackle it too. I was looking into having it done myself but cost vs performance gains not cost effective, max a 1 HP gain for 400+ bucks.... so slap the BS meter and reset it. I also installed the white Brothers carb, opened the airbox and installed the K&N filter, and threw on the PRO CIRCUIT Ti-4 exhaust. Made a huge difference in performance over stock and gained 4 HP on dyno. May not sound like much but when stock is 31 ....you do the math for performance percentage increase. Superior Dyno in So Cal.

Do yourself and others a favor next time before you want to discount someones posts ( and set your BS meter off ). Do an internet search of the subject you are about to shoot down. Might save you some red face in the future. You might also want to check out KLR 650 com for their links to engine work shops. :thumbsup:

Nice 2nd post dude. Glad you like your KLR and I'm wondering how you keep your front wheel down with all that power :applause:

By the way, $400+ for maybe 1 HP is BS so the meter stays on...

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Nice 2nd post dude. Glad you like your KLR and I'm wondering how you keep your front wheel down with all that power :applause:

By the way, $400+ for maybe 1 HP is BS so the meter stays on...

I just joined this forum yesterday but I'll put my 38 years of riding and racing and motorcycle experience up against your <150 posts any day of the week. You proved that number of posts don't show your intelligence, or what you are talking about. So I guess if you don't know what your talking about but try to impress all with your repeated ignorant posts you can run up your post total pretty high and your BS meter will constantly go off...

Nice how you changed calling the porting of a KLR as BS to spending the money as BS. You said you never heard of it being done... says volumes right there about your expert status. Nice tap dancing shoes you got there. Now why don't you tap down to a library and do some reading up on motorcycle modifications and actually learn about a subject before you enlighten the rest of us with your vast modification experience and what you think can or can't be done.

:applause::applause:

Flame on little boy....I'm done..said what needed to be said... :thumbsup:

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try the tractor mod, ran mine all summer, much more free flowing than stock, about the same as a super trapp, but thats just from me testing with a air flow meter, nothing really technical. quieter than the super trapp too. Here's mine, I took it off to repaint it. and it costs a whopping $35 !{as long as you have a mid pipe to use from another exhaust, mine was from my old super trapp}

MVC-009S.jpg<a href="http://photobucket.com/" target="_blank"><img src="http://i42.photobucket.com/albums/e309/gunnyusmc/MVC-009S.jpg" border="0" alt="Photobucket - Video and Image Hosting"></a>

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Everybody knows a good pipe, uncorking and jetting will make a world of difference on a production thumper.

Why would a KLR be any different?

Stepped in what?

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Have super trap on mine and my wifes 06 klr love them sound great for about 240.00

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I am gonna try the Staintune- made down under.

Stainless steel, no packing (mechanical), quiet and looks awesome.

Pricey though but looks worth it.

Pipe, carb mods and open air box gain @ 3 hp according to some tests.

The biggest gain will be in throttle response and seat of your pants.

When mine is broken in-I will try it.

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Airbox mod, 22 cent washer on the needle, richen the idle mix will get some improvement. A jet kit gets more improvement if you throw in a good exhaust.

The wobbly forks take on new life if serviced properly (no, still not as good as modern forks) - many run higher fluid level than stock, and some also add a little air pressure. I run the fork oil at 165mm (measured from the top down, springs removed, forks collapsed) and 10 psi each leg.

There is a ton of other stuff you can do depending on how much $$$$ you want to throw at it..... Search for Schnitz Motorsports (KLRCary) for head work & 685 big bore kit.

Just remember when you are all done that it only is what it is.... a KLR and that's good enough.... for what it is. I love mine but it isn't the only bike I own.

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where the head pipe and slip on joins, watch out make sure you have a good fit. It'll get hot and blow a hole, then melt your rear brake resevoir

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