Author Topic: Quiet Core stainless muffler  (Read 2222 times)

0 Members and 4 Guests are viewing this topic.

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,753
  • Northern Virginia
Quiet Core stainless muffler
« on: January 16, 2015, 05:17:57 am »
I feel the %subj% needs to be tied to the frame somehow, being 18" long it can not just stick out by itself held in place by exhaust studs only.

I don't have the option to weld SS, do you think sheet metal screws would be enough to hold a bracket to the muffler?

« Last Edit: January 16, 2015, 05:19:39 am by 70CB750 »

Offline bjbuchanan

  • Master
  • *****
  • Posts: 2,276
Re: Quiet Core stainless muffler
« Reply #1 on: January 16, 2015, 06:50:22 am »
If nobody sees this that has one get a hold of flybox he has the stainless quiet core mounted on his 750
The dirty girl-1976 cb750k, Ebay 836, Tracy bodykit
Round top carbs w/ 38 pilots, middle needle position, airscrew 7/8ths out, 122 main jet
Stock airbox w/ drop in K&N, Hooker 4-1

Don't trust me alone with a claw hammer and some pliers

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,301
Re: Quiet Core stainless muffler
« Reply #2 on: January 16, 2015, 07:04:12 am »
 ;D

Yeah, i felt the same way. Too heavy to be supported just by the studs, especially with the bumpy roads here.
I would think screws might work themselves out over time. 
Best to try and find someone to TIG a bracket on for you.  Check CL in the Services listings. 
A 12pk of beer can go a long way  ;D
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline Djfob

  • Hot Shot
  • ***
  • Posts: 313
78 CB750k

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,753
  • Northern Virginia
Re: Quiet Core stainless muffler
« Reply #4 on: January 16, 2015, 07:26:56 am »
Thanks, fellas  :)

flybox:  same here, not feeling like trusting screws

Djfob: clamp by the mufler input? 

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,301
Re: Quiet Core stainless muffler
« Reply #5 on: January 16, 2015, 07:35:31 am »
I used a clamp and hung it from the frame. No screws or welding

http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-custom-motorcycle-exhaust-parts-round-chrome-clamp-80-62212.html
Djfob...how did you secure the muffler to the header?    This clamp is good to connect it to the frame for support, but whats keeping the end of the can from bounding up and down and wiggling loose?  :-\   
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline koendd

  • Hot Shot
  • ***
  • Posts: 343
Re: Quiet Core stainless muffler
« Reply #6 on: January 16, 2015, 07:41:02 am »
you can just weld a steel bracket on stainless...
I did that once, no problem, holds fine ;)
1972 cb750K2 brat
1976 cb360
1984 GPZ900R

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,753
  • Northern Virginia
Re: Quiet Core stainless muffler
« Reply #7 on: January 16, 2015, 07:42:08 am »
you can just weld a steel bracket on stainless...
I did that once, no problem, holds fine ;)

You learn something new every day  :)

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,717
  • Saver of unloved motorcycles.
Re: Quiet Core stainless muffler
« Reply #8 on: January 16, 2015, 07:45:05 am »
If it's a snug fit over the collector I'd split it with a hacksaw and put a T bolt hose clamp on it. Jegs or Summit have them. They hold the engines in drag cars, I used them on the mufflers I used to make and sell.
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,802
  • Vancouver
Re: Quiet Core stainless muffler
« Reply #9 on: January 16, 2015, 08:24:46 am »
you can just weld a steel bracket on stainless...
I did that once, no problem, holds fine ;)

Core Engineering sells a variety of SS weld on tabs.
Cheap too. I also get a long way with a box of beer.
Especially with motorcycle projects. Who doesn't like motorcycles?
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline 754

  • Really Old Timer ...
  • *******
  • Posts: 29,058
Re: Quiet Core stainless muffler
« Reply #10 on: January 16, 2015, 08:48:29 am »
Machine an aluminum clamp with a groove that goes over the weld at the back..could be only 3/16 thick except at bolt area. I know the clamp at fat part of meg does not look the best, but will work, till you tighten something on later.
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Djfob

  • Hot Shot
  • ***
  • Posts: 313
Re: Quiet Core stainless muffler
« Reply #11 on: January 16, 2015, 07:25:54 pm »

I used a clamp and hung it from the frame. No screws or welding

http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-custom-motorcycle-exhaust-parts-round-chrome-clamp-80-62212.html
Djfob...how did you secure the muffler to the header?    This clamp is good to connect it to the frame for support, but whats keeping the end of the can from bounding up and down and wiggling loose?  :-\

My quiet core fits really snug to my cycle x 4-2-1. I just use a t bolt clamp. In addition to the muffler braced to the frame it's not going anywhere.
78 CB750k

Offline seanbarney41

  • not really that much younger than an
  • Really Old Timer ...
  • *******
  • Posts: 10,777
Re: Quiet Core stainless muffler
« Reply #12 on: January 16, 2015, 07:33:35 pm »
you can just weld a steel bracket on stainless...
I did that once, no problem, holds fine ;)

Core Engineering sells a variety of SS weld on tabs.
Cheap too. I also get a long way with a box of beer.
Especially with motorcycle projects. Who doesn't like motorcycles?
more importantly, who doesn't like beer?
If it works good, it looks good...

Offline koendd

  • Hot Shot
  • ***
  • Posts: 343
Re: Quiet Core stainless muffler
« Reply #13 on: January 17, 2015, 12:28:17 am »
you can just weld a steel bracket on stainless...
I did that once, no problem, holds fine ;)

Core Engineering sells a variety of SS weld on tabs.
Cheap too. I also get a long way with a box of beer.
Especially with motorcycle projects. Who doesn't like motorcycles?

SS is an option as well of course, would even look better.
Just ment to say that you can mig weld on Stainless ;)
1972 cb750K2 brat
1976 cb360
1984 GPZ900R

Offline dave500

  • Really Old Timer ...
  • *******
  • Posts: 16,975
  • WHAT?no gravy?
Re: Quiet Core stainless muffler
« Reply #14 on: January 17, 2015, 02:49:47 am »
you can just weld a steel bracket on stainless...
I did that once, no problem, holds fine ;)

Core Engineering sells a variety of SS weld on tabs.
Cheap too. I also get a long way with a box of beer.
Especially with motorcycle projects. Who doesn't like motorcycles?
more importantly, who doesn't like beer?

I don't like beer,i #$%*in love it!

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,753
  • Northern Virginia
Re: Quiet Core stainless muffler
« Reply #15 on: January 17, 2015, 02:55:24 am »
Beer is the proof God loves us and wants us happy n

Offline dave500

  • Really Old Timer ...
  • *******
  • Posts: 16,975
  • WHAT?no gravy?
Re: Quiet Core stainless muffler
« Reply #16 on: January 17, 2015, 02:58:27 am »
ill buurrrp to that!
« Last Edit: January 17, 2015, 03:07:32 am by dave500 »

Offline calj737

  • Really Old Timer ...
  • *******
  • Posts: 20,992
  • I refuse...
Re: Quiet Core stainless muffler
« Reply #17 on: January 17, 2015, 04:43:44 am »
ill buurrrp to that!

^^^ Like a baby to his mum's breast  ;)
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,753
  • Northern Virginia
Re: Quiet Core stainless muffler
« Reply #18 on: January 17, 2015, 06:19:41 am »
ill buurrrp to that!


Nice to see a man size glass there:). In my country, beer unit is half a liter, beer bottles are half a liter, of course we are way ahead everybody in beer drinking per person:

http://en.m.wikipedia.org/wiki/List_of_countries_by_beer_consumption_per_capita