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i need help pls - muffler mod instructions with photos
Posted: Tue Dec 29, 2009 4:38 pm
by Jeff Khoury
#ygrps-yiv-1300629737 p {margin:0;}--Repost for those who've recently joined us--
How I did the muffler mod (a.k.a. tweetyectomy)
What you need:
2" metal hole saw
4" of 1" diameter dowel
a drill bit of the appropriate size for the hole saw
a pair of needle nosed pliers
a GOOD drill
a 1 7/8" or 2" OD piece of exhaust pipe or exhaust tip
a hacksaw
sandpaper
hi-temp matte black barbecue paint
a magnet on a stick (optional)
A few bucks to pay a welder.
* Chuck the drill bit and drill a longitudinal hole in the dowel. (The dowel will serve as a guide to keep the hole saw centered while cutting the back of your muffler.)
* Unchuck the drill bit and chuck in the hole saw.
* Attach the drill bit to the hole saw and tighten.
* Slip the dowel over the drill bit.
* Slide the whole contraption into the opening of your exhaust.
* Cut the hole starting with slow speed and slow feed until you get a groove that the hole saw will ride in. Use cutting oil or similar applied at intervals while you're cutting.
* Once the groove is created, you can increase the speed of the drill.
* When you're getting close to breaking through, be careful not to push too hard and ram the hole saw into the guts of the muffler.
* Tweety should come out easily if you grasp it with the needle nose pliers.
* Use the magnet to pick up any shavings that fell into the muffler.
* Stick the exhaust tip into the hole and guesstimate how much you want to cut off to leave the desired amount protruding.
* Cut the exhaust tip to length with the hacksaw.
* Have someone weld it in for you. (Midas did it for me for 20 bucks)
* Surface sand all exposed metal to allow for best paint adhesion
* Rattle-can the bare metal parts.
* Start and listen to your new better-sounding, freer-flowing exhaust.
Here are the pictures of my exhaust mod. Please excuse the sloppy weld, I guess the guy was having a bad day or something...
http://www.flickr.com/photos/39547532@N03/sets/72157619806103287/
-Jeff Khoury
[img]
http://geo.yahoo.com/serv?s=97359714/gr ... c3=5522131[/img]
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 12:19 am
by revmaaatin
Hi Jeff,
Looking at your pictures, it seems you are removing the spark arrestor--T or F?
Just asking. A non-conforming farkle = zero acess to some NF riding areas. and rightfully so (IMO).
revmaaatin.
--- In
DSN_KLR650@yahoogroups.com, Jeff Khoury wrote:
>
> --Repost for those who've recently joined us--
>
> How I did the muffler mod (a.k.a. tweetyectomy)
>
> What you need:
>
> 2" metal hole saw
> 4" of 1" diameter dowel
> a drill bit of the appropriate size for the hole saw
> a pair of needle nosed pliers
> a GOOD drill
> a 1 7/8" or 2" OD piece of exhaust pipe or exhaust tip
> a hacksaw
> sandpaper
> hi-temp matte black barbecue paint
> a magnet on a stick (optional)
>
> A few bucks to pay a welder.
>
> * Chuck the drill bit and drill a longitudinal hole in the dowel. (The dowel will serve as a guide to keep the hole saw centered while cutting the back of your muffler.)
>
> * Unchuck the drill bit and chuck in the hole saw.
>
> * Attach the drill bit to the hole saw and tighten.
>
> * Slip the dowel over the drill bit.
>
> * Slide the whole contraption into the opening of your exhaust.
>
> * Cut the hole starting with slow speed and slow feed until you get a groove that the hole saw will ride in. Use cutting oil or similar applied at intervals while you're cutting.
>
> * Once the groove is created, you can increase the speed of the drill.
>
> * When you're getting close to breaking through, be careful not to push too hard and ram the hole saw into the guts of the muffler.
>
> * Tweety should come out easily if you grasp it with the needle nose pliers.
>
> * Use the magnet to pick up any shavings that fell into the muffler.
>
> * Stick the exhaust tip into the hole and guesstimate how much you want to cut off to leave the desired amount protruding.
>
> * Cut the exhaust tip to length with the hacksaw.
>
> * Have someone weld it in for you. (Midas did it for me for 20 bucks)
>
> * Surface sand all exposed metal to allow for best paint adhesion
>
> * Rattle-can the bare metal parts.
>
> * Start and listen to your new better-sounding, freer-flowing exhaust.
>
> Here are the pictures of my exhaust mod. Please excuse the sloppy weld, I guess the guy was having a bad day or something...
>
>
http://www.flickr.com/photos/39547532@N03/sets/72157619806103287/
>
> -Jeff Khoury
>
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 12:22 am
by revmaaatin
ps.
would like to hear what it sounds like if you know how to post a file to u-tube, etc.
(not like I know how--cough.)
revmaaatin.
--- In
DSN_KLR650@yahoogroups.com, Jeff Khoury wrote:
>
> --Repost for those who've recently joined us--
>
> How I did the muffler mod (a.k.a. tweetyectomy)
>
> What you need:
>
> 2" metal hole saw
> 4" of 1" diameter dowel
> a drill bit of the appropriate size for the hole saw
> a pair of needle nosed pliers
> a GOOD drill
> a 1 7/8" or 2" OD piece of exhaust pipe or exhaust tip
> a hacksaw
> sandpaper
> hi-temp matte black barbecue paint
> a magnet on a stick (optional)
>
> A few bucks to pay a welder.
>
> * Chuck the drill bit and drill a longitudinal hole in the dowel. (The dowel will serve as a guide to keep the hole saw centered while cutting the back of your muffler.)
>
> * Unchuck the drill bit and chuck in the hole saw.
>
> * Attach the drill bit to the hole saw and tighten.
>
> * Slip the dowel over the drill bit.
>
> * Slide the whole contraption into the opening of your exhaust.
>
> * Cut the hole starting with slow speed and slow feed until you get a groove that the hole saw will ride in. Use cutting oil or similar applied at intervals while you're cutting.
>
> * Once the groove is created, you can increase the speed of the drill.
>
> * When you're getting close to breaking through, be careful not to push too hard and ram the hole saw into the guts of the muffler.
>
> * Tweety should come out easily if you grasp it with the needle nose pliers.
>
> * Use the magnet to pick up any shavings that fell into the muffler.
>
> * Stick the exhaust tip into the hole and guesstimate how much you want to cut off to leave the desired amount protruding.
>
> * Cut the exhaust tip to length with the hacksaw.
>
> * Have someone weld it in for you. (Midas did it for me for 20 bucks)
>
> * Surface sand all exposed metal to allow for best paint adhesion
>
> * Rattle-can the bare metal parts.
>
> * Start and listen to your new better-sounding, freer-flowing exhaust.
>
> Here are the pictures of my exhaust mod. Please excuse the sloppy weld, I guess the guy was having a bad day or something...
>
>
http://www.flickr.com/photos/39547532@N03/sets/72157619806103287/
>
> -Jeff Khoury
>
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 11:31 am
by Jeff Khoury
#ygrps-yiv-644693578 p {margin:0;}No, the tweety is simply a hollow, perforated tube with packing in between the two walls. Once you look inside the muffler, you will see a "cone-type" spark arrestor between the two chambers of the muffler. I left it in place, but some people remove it as well.
-Jeff Khoury
Astatic Solutions, LLC.
----- Original Message -----
From: "revmaaatin"
To: "DSN KLR650" DSN_KLR650@yahoogroups.com>
Sent: Tuesday, December 29, 2009 10:19:33 PM GMT -08:00 US/Canada Pacific
Subject: [DSN_KLR650] Re: i need help pls - Muffler Mod Instructions with Photos
Hi Jeff,
Looking at your pictures, it seems you are removing the spark arrestor--T or F?
Just asking. A non-conforming farkle = zero acess to some NF riding areas. and rightfully so (IMO).
revmaaatin.
--- In DSN_KLR650%40yahoogroups.com, Jeff Khoury wrote:
>
> --Repost for those who've recently joined us--
>
> How I did the muffler mod (a.k.a. tweetyectomy)
>
> What you need:
>
> 2" metal hole saw
> 4" of 1" diameter dowel
> a drill bit of the appropriate size for the hole saw
> a pair of needle nosed pliers
> a GOOD drill
> a 1 7/8" or 2" OD piece of exhaust pipe or exhaust tip
> a hacksaw
> sandpaper
> hi-temp matte black barbecue paint
> a magnet on a stick (optional)
>
> A few bucks to pay a welder.
>
> * Chuck the drill bit and drill a longitudinal hole in the dowel. (The dowel will serve as a guide to keep the hole saw centered while cutting the back of your muffler.)
>
> * Unchuck the drill bit and chuck in the hole saw.
>
> * Attach the drill bit to the hole saw and tighten.
>
> * Slip the dowel over the drill bit.
>
> * Slide the whole contraption into the opening of your exhaust.
>
> * Cut the hole starting with slow speed and slow feed until you get a groove that the hole saw will ride in. Use cutting oil or similar applied at intervals while you're cutting.
>
> * Once the groove is created, you can increase the speed of the drill.
>
> * When you're getting close to breaking through, be careful not to push too hard and ram the hole saw into the guts of the muffler.
>
> * Tweety should come out easily if you grasp it with the needle nose pliers.
>
> * Use the magnet to pick up any shavings that fell into the muffler.
>
> * Stick the exhaust tip into the hole and guesstimate how much you want to cut off to leave the desired amount protruding.
>
> * Cut the exhaust tip to length with the hacksaw.
>
> * Have someone weld it in for you. (Midas did it for me for 20 bucks)
>
> * Surface sand all exposed metal to allow for best paint adhesion
>
> * Rattle-can the bare metal parts.
>
> * Start and listen to your new better-sounding, freer-flowing exhaust.
>
> Here are the pictures of my exhaust mod. Please excuse the sloppy weld, I guess the guy was having a bad day or something...
>
>
http://www.flickr.com/photos/39547532@N03/sets/72157619806103287/
>
> -Jeff Khoury
>
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 11:32 am
by Jeff Khoury
#ygrps-yiv-1522626425 p {margin:0;}I will take a short video and post it this weekend. It's a "little" louder than stock, but a much deeper tone, about as loud as a STOCK harley. If you're in 3rd or 4th at 4000 rpm or so, it sounds like a Ducati.
-Jeff Khoury
----- Original Message -----
From: "revmaaatin"
To: "DSN KLR650" DSN_KLR650@yahoogroups.com>
Sent: Tuesday, December 29, 2009 10:21:59 PM GMT -08:00 US/Canada Pacific
Subject: [DSN_KLR650] Re: i need help pls - Muffler Mod Instructions with Photos
ps.
would like to hear what it sounds like if you know how to post a file to u-tube, etc.
(not like I know how--cough.)
revmaaatin.
--- In DSN_KLR650%40yahoogroups.com, Jeff Khoury wrote:
>
> --Repost for those who've recently joined us--
>
> How I did the muffler mod (a.k.a. tweetyectomy)
>
> What you need:
>
> 2" metal hole saw
> 4" of 1" diameter dowel
> a drill bit of the appropriate size for the hole saw
> a pair of needle nosed pliers
> a GOOD drill
> a 1 7/8" or 2" OD piece of exhaust pipe or exhaust tip
> a hacksaw
> sandpaper
> hi-temp matte black barbecue paint
> a magnet on a stick (optional)
>
> A few bucks to pay a welder.
>
> * Chuck the drill bit and drill a longitudinal hole in the dowel. (The dowel will serve as a guide to keep the hole saw centered while cutting the back of your muffler.)
>
> * Unchuck the drill bit and chuck in the hole saw.
>
> * Attach the drill bit to the hole saw and tighten.
>
> * Slip the dowel over the drill bit.
>
> * Slide the whole contraption into the opening of your exhaust.
>
> * Cut the hole starting with slow speed and slow feed until you get a groove that the hole saw will ride in. Use cutting oil or similar applied at intervals while you're cutting.
>
> * Once the groove is created, you can increase the speed of the drill.
>
> * When you're getting close to breaking through, be careful not to push too hard and ram the hole saw into the guts of the muffler.
>
> * Tweety should come out easily if you grasp it with the needle nose pliers.
>
> * Use the magnet to pick up any shavings that fell into the muffler.
>
> * Stick the exhaust tip into the hole and guesstimate how much you want to cut off to leave the desired amount protruding.
>
> * Cut the exhaust tip to length with the hacksaw.
>
> * Have someone weld it in for you. (Midas did it for me for 20 bucks)
>
> * Surface sand all exposed metal to allow for best paint adhesion
>
> * Rattle-can the bare metal parts.
>
> * Start and listen to your new better-sounding, freer-flowing exhaust.
>
> Here are the pictures of my exhaust mod. Please excuse the sloppy weld, I guess the guy was having a bad day or something...
>
>
http://www.flickr.com/photos/39547532@N03/sets/72157619806103287/
>
> -Jeff Khoury
>
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 12:00 pm
by revmaaatin
--- In
DSN_KLR650@yahoogroups.com, Jeff Khoury wrote:
>
> I will take a short video and post it this weekend. It's a "little" louder than stock, but a much deeper tone, about as loud as a STOCK harley. If you're in 3rd or 4th at 4000 rpm or so, it sounds like a Ducati.
>
> -Jeff Khoury
>
Oh, the noise issue. grimice.
I hope it is a pleasant tone. grin.
Last Sept I was riding with thermo-bob Watson, and asked him to verify what I thought was a lean-surge condition above 60mph =4500+rpm.
He suggested removing the aircleaner door to see if that helped.
It did.
but the noise. ugh.
No surge, but what a horrible flatulent noise the KLR makes with the air cleaner door removed. ugh.
Ugh.
I have not reistalled the door yet, but it is going to be. The cure was more annoying than than the problem. at least at this time.
revmaaatin.
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 12:03 pm
by Jeff Khoury
Attachments :#ygrps-yiv-1008678206 p {margin:0;}Here is what the bike sounds like with the described muffler mod. I am attaching it, but just in case it gets stripped, here is a clickable link:
http://www.astatic.net/files/MufflerAudio.mp3
-Jeff Khoury
----- Original Message -----
From: "revmaaatin" mjearl@venturecomm.net>
To: "DSN KLR650" DSN_KLR650@yahoogroups.com>
Sent: Wednesday, December 30, 2009 9:59:47 AM GMT -08:00 US/Canada Pacific
Subject: [DSN_KLR650] Re: i need help pls - Muffler Mod Instructions with Photos
--- In DSN_KLR650%40yahoogroups.com, Jeff Khoury wrote:
>
> I will take a short video and post it this weekend. It's a "little" louder than stock, but a much deeper tone, about as loud as a STOCK harley. If you're in 3rd or 4th at 4000 rpm or so, it sounds like a Ducati.
>
> -Jeff Khoury
>
Oh, the noise issue. grimice.
I hope it is a pleasant tone. grin.
Last Sept I was riding with thermo-bob Watson, and asked him to verify what I thought was a lean-surge condition above 60mph =4500+rpm.
He suggested removing the aircleaner door to see if that helped.
It did.
but the noise. ugh.
No surge, but what a horrible flatulent noise the KLR makes with the air cleaner door removed. ugh.
Ugh.
I have not reistalled the door yet, but it is going to be. The cure was more annoying than than the problem. at least at this time.
revmaaatin.
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 12:16 pm
by Thomas Komjathy
Rev
Do the L-Mod at the top of the box, with the seat over it the sound is barely noticeable
TK.
[b]From:[/b] revmaaatin
[b]To:[/b]
DSN_KLR650@yahoogroups.com
[b]Sent:[/b] Wed, December 30, 2009 12:59:47 PM
[b]Subject:[/b] [DSN_KLR650] Re: i need help pls - Muffler Mod Instructions with Photos
--- In DSN_KLR650%40yahoogroups.com, Jeff Khoury wrote:
>
> I will take a short video and post it this weekend. It's a "little" louder than stock, but a much deeper tone, about as loud as a STOCK harley. If you're in 3rd or 4th at 4000 rpm or so, it sounds like a Ducati.
>
> -Jeff Khoury
>
Oh, the noise issue. grimice.
I hope it is a pleasant tone. grin.
Last Sept I was riding with thermo-bob Watson, and asked him to verify what I thought was a lean-surge condition above 60mph =4500+rpm.
He suggested removing the aircleaner door to see if that helped.
It did.
but the noise. ugh.
No surge, but what a horrible flatulent noise the KLR makes with the air cleaner door removed. ugh.
Ugh.
I have not reistalled the door yet, but it is going to be. The cure was more annoying than than the problem. at least at this time.
revmaaatin.
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 12:22 pm
by revmaaatin
--- In
DSN_KLR650@yahoogroups.com, Jeff Khoury wrote:
That is absolutely amazing.
Your KLR sounds just like Joan Jett and the Black Hearts (at least during my download.)
revmaaatin.
i need help pls - muffler mod instructions with photos
Posted: Wed Dec 30, 2009 12:25 pm
by Thomas Komjathy
Jeff
Thanks for sharing, I think I can do that...
[b]From:[/b] Jeff Khoury
[b]To:[/b] revmaaatin
[b]Cc:[/b] DSN KLR650 DSN_KLR650@yahoogroups.com>
[b]Sent:[/b] Wed, December 30, 2009 1:03:22 PM
[b]Subject:[/b] Re: [DSN_KLR650] Re: i need help pls - Muffler Mod Instructions with Photos
Here is what the bike sounds like with the described muffler mod. I am attaching it, but just in case it gets stripped, here is a clickable link:
http://www.astatic. net/files/ MufflerAudio. mp3
-Jeff Khoury
----- Original Message -----
From: "revmaaatin"
To: "DSN KLR650" ups.com>
Sent: Wednesday, December 30, 2009 9:59:47 AM GMT -08:00 US/Canada Pacific
Subject: [DSN_KLR650] Re: i need help pls - Muffler Mod Instructions with Photos
--- In DSN_KLR650%40yahoogroups.com, Jeff Khoury wrote:
>
> I will take a short video and post it this weekend. It's a "little" louder than stock, but a much deeper tone, about as loud as a STOCK harley. If you're in 3rd or 4th at 4000 rpm or so, it sounds like a Ducati.
>
> -Jeff Khoury
>
Oh, the noise issue. grimice.
I hope it is a pleasant tone. grin.
Last Sept I was riding with thermo-bob Watson, and asked him to verify what I thought was a lean-surge condition above 60mph =4500+rpm.
He suggested removing the aircleaner door to see if that helped.
It did.
but the noise. ugh.
No surge, but what a horrible flatulent noise the KLR makes with the air cleaner door removed. ugh.
Ugh.
I have not reistalled the door yet, but it is going to be. The cure was more annoying than than the problem. at least at this time.
revmaaatin.