Thank you for making this video I've punched out the back with a screw driver and stop there I couldn't find anywhere what the hell was inside the klr650 2008 manual in my opinion leaves alot out ,but that was great .
A very nice cutting job and filming but you sadly miss the fluid dynamics of how a four stroke single cylinder exhaust works. This exhaust is actually causing little restriction. It gradually converts a tremendously loud pressure pulse into a quiet continous gas flow. This allows to reduce the flow cross section gradually without restricting the flow. Proven by the point that "free flow" (=noisy) silencers rarely offer performance gains. If there are any gains they are no more than marginal and usually lie above max stock power in the top end of the rev band before the red line.
Hi Jurgen, technically you may be right, but I did notice a difference. There must be some friction being added with all the extra pipe work in there, plus extra weight, and then of course not everyone wants a poot poot poot sounding exhaust........... ;)
I wonder if they designed like this to help keep water out. If you notice on the muffler at least mine has the bolts to it. I thought well maybe it there to help drain water if you drop it in a water crossing. Just a guess...maybe not..
I lasted a week with my KLR650 before the new tail pipe went on, that and a few carby mods on a brand new bike, made so much difference to the power of the bike, or it could just be the weight difference from the standard pipe to the new one, but great video. Saves me cutting up mine now. Cheers
Wow, what a cluster .....! Thanks a lot for this I've been wondering for a bit now. Great work with the cutter. Bet you were going like "you gotta be shitting me" as each new chamber revealed its secret!
I did something similar on a 2002 muffler and the earlier muffler is much simpler. I cut mine at a 45 degree angle (from the rear can) and eliminated the large bulbous part. I replaced it with a piece of exhaust pipe from a mazda car with a 45 degree bend in it, and the result is a pipe that looks standard but weighs about ten pounds less. I cut out the 'tweety' in the can and made a deflector to keep exhaust stains off the rear fender. It is an improvement, the bike is still fairly quiet--the only downside is its labor intensive--and you must have a welder, a MIG in my case.
What year is that, and what region (world) bike did it come off? Reason I ask is the 2006 U.S. KLR I have has a completely different setup inside the back end. There's a long perforated pipe in mine that goes in about 8" directly from the back of the muffler. Splitting that inside perforated pipe with a long cold chisel cleared up the tweety bird sound quite a bit.
Hi there WheeliePete, I don't know what year its off as I bought it off the local Gumtree Trading App just for this purpose. It is from the Australian version, but I don't know if they are different for each country.
At least cut that last chamber off. That would give her four times the volume to flow. Thank You for doing this video. Does the gen two have a catalytic converter on them???
Great. I just fitted the Lexx muffler to my KLR 650. So much better. Great video and great cutting work on that hideous Muffler. I cant believe Kawasaki kept on making them like that for such a long time. I just don't get it? All Kawasaki now need is to create an all new KLR 650 with all the fruit. Such as Fuel injection, Sports muffler and switchable ABS brakes.
They did it for the global CAFE standards. They even quit making it to fuel injector it due to this. The green meanies are ruining everything. Fast as they can.
thought? how many db's would this muffler take off a contractor generator? (say a 8000 watt unit) yes i know a lot of sound is directly off the motor it's self. not via the exhaust. but gen sound is easy contained via housing in a cinder block shack. my thinking home back up gen set. why let the whole county know it is running.
Yeah. I like my quiet bike. I come up on animals and people very easily. Especially in the wooded roads of Allegheny National park.
So, that's where Tweety lives..
I like my stock muffler just fine thanks, nice and muffley, quiet
Fantastic video mate. Thanks, for taking the time to share it. Upgrading my suspension then off to Staintune.
Looks like a good mod would be to stick a long metal pole up the rear end and bash a new hole to make it flow better
Thank you for making this video I've punched out the back with a screw driver and stop there I couldn't find anywhere what the hell was inside the klr650 2008 manual in my opinion leaves alot out ,but that was great .
A very nice cutting job and filming but you sadly miss the fluid dynamics of how a four stroke single cylinder exhaust works. This exhaust is actually causing little restriction. It gradually converts a tremendously loud pressure pulse into a quiet continous gas flow. This allows to reduce the flow cross section gradually without restricting the flow.
Proven by the point that "free flow" (=noisy) silencers rarely offer performance gains. If there are any gains they are no more than marginal and usually lie above max stock power in the top end of the rev band before the red line.
Hi Jurgen, technically you may be right, but I did notice a difference. There must be some friction being added with all the extra pipe work in there, plus extra weight, and then of course not everyone wants a poot poot poot sounding exhaust........... ;)
Nailed it.
Standard sounds like a wet fart though
I wonder if they designed like this to help keep water out. If you notice on the muffler at least mine has the bolts to it. I thought well maybe it there to help drain water if you drop it in a water crossing. Just a guess...maybe not..
That was thorough. Well done old chap!
I lasted a week with my KLR650 before the new tail pipe went on, that and a few carby mods on a brand new bike, made so much difference to the power of the bike, or it could just be the weight difference from the standard pipe to the new one, but great video. Saves me cutting up mine now. Cheers
Thank you.. I was on the fence.. not anymore
Thanks for revealing this. " You gotta be shitting me" sounds about right.
Thanks guys, glad you like it. :) Still waiting for my new Staintune to arrive, any day now!
Wow, what a cluster .....! Thanks a lot for this I've been wondering for a bit now. Great work with the cutter. Bet you were going like "you gotta be shitting me" as each new chamber revealed its secret!
Thank you!!!! Thank you!!! Thank you!!!
Greetings from Hungary!
HA!! I was wondering how it was built up in there. Thanks for showing this so well. This definitely has me wanting a better muffler now.
bless your soul for this video. helped me so much.
I did something similar on a 2002 muffler and the earlier muffler is much simpler. I cut mine at a 45 degree angle (from the rear can) and eliminated the large bulbous part. I replaced it with a piece of exhaust pipe from a mazda car with a 45 degree bend in it, and the result is a pipe that looks standard but weighs about ten pounds less. I cut out the 'tweety' in the can and made a deflector to keep exhaust stains off the rear fender. It is an improvement, the bike is still fairly quiet--the only downside is its labor intensive--and you must have a welder, a MIG in my case.
I would like to see a photo of your mod
I can see why the infamous "tweety" mod works now, thank you!
I've always wondered what was going on in there haha. Thanks!
Great video mate, I always did wonder how it worked. I have a DG on my KLR, Still have my stock exhaust as well.
OUTSTANDING !
thank you very much
OMG, thank you so much for this video. Very informative. Looks like my next model is an exhaust
Thank you
I was wondering about that while searching for a new one at this time. Thanks
Perfect . Thanks !
Great video. thanks.
Nice Video, mystery solved!
Hi there Ting Ting, just ran a magnet over it, it appears the outer shell is stainless, insides and header pipe are steel. Hope that helps!
Thank you, that’s very restrictive holy shit.
What year is that, and what region (world) bike did it come off? Reason I ask is the 2006 U.S. KLR I have has a completely different setup inside the back end. There's a long perforated pipe in mine that goes in about 8" directly from the back of the muffler. Splitting that inside perforated pipe with a long cold chisel cleared up the tweety bird sound quite a bit.
Hi there WheeliePete, I don't know what year its off as I bought it off the local Gumtree Trading App just for this purpose. It is from the Australian version, but I don't know if they are different for each country.
WOW! Thanks for sharing. Very informative. Aftermarket exhaust looks like a must.
Well. Yeah. After what he did to it he’ll need another one.
Although that one should breath a lot better.
Thats what epa wants
Hey AircondGypsy, you are right, I was!!!!!
Great video
At least cut that last chamber off. That would give her four times the volume to flow. Thank You for doing this video. Does the gen two have a catalytic converter on them???
Awesome vid
Thanks
I'm changing exhausts now.
Great. I just fitted the Lexx muffler to my KLR 650. So much better. Great video and great cutting work on that hideous Muffler. I cant believe Kawasaki kept on making them like that for such a long time. I just don't get it? All Kawasaki now need is to create an all new KLR 650 with all the fruit. Such as Fuel injection, Sports muffler and switchable ABS brakes.
Space Bubbles did you have to change your jets? if you did what did you go to
Hi from Australia whats a good pipe for my 2017klr tia. Keep uprite
Hy is lex muffler is loud
They did it for the global CAFE standards. They even quit making it to fuel injector it due to this. The green meanies are ruining everything. Fast as they can.
No wonder why they sound like a damn generator! I put a DG "muffler" on mine. Did a Delkavic system on my DL650 too. Both much nicer sounds.
thought? how many db's would this muffler take off a contractor generator? (say a 8000 watt unit) yes i know a lot of sound is directly off the motor it's self. not via the exhaust. but gen sound is easy contained via housing in a cinder block shack.
my thinking home back up gen set. why let the whole county know it is running.
@@larryjanson4011
These mufflers would help with that!
What about cutting all that crap off and leaving the original pipe, and fitting a small and cheap aftemarket exhaust to that?
Go to aurozone and throw on one of the cheap tips. Heck, just put the tip on the header, somewhere near the head
gees, no wonder.
So.... there is no cat convertor in there then? Interesting
I think the converter is either the 'batting ' in the second chamber or in the perforated steel between chambers. Could be wrong though
Does the exhaust system qualify as a spark arrestor?
Hi JP, I believe it was designed for the US Forestry Dept so I would expect it to be, but not absolutely sure.
I drilled through the first three chambers. Here's the video mega.nz/#!evgSVAra!omjaW4AShW96gIiraKWOE5hV38IHX65kXL13rtAhWKY
That's awesome. Thanks! Shows how pointless it is when people modify the standard muffler. Cheers