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Message started by Hardly on 03/26/08 at 10:13:18

Title: Adapting Dyna Muffler
Post by Hardly on 03/26/08 at 10:13:18

Howdy:

Please Help me.  I've done the searches but can't seem to find the one on adapting a Dyna Muffler.  The author used a piece of pipe to add a 10 degree bend and move the muffler outlet back some.

Does this sound familiar?  I've likely got some part of it wrong somehow.  Please help.

Adios, David

Title: Re: Adapting Dyna Muffler
Post by T Mack 1 on 03/26/08 at 10:36:54

Is there a reason you want to add an angle.    When I put on a Dyna pipe it bolted right up.    

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Title: Re: Adapting Dyna Muffler
Post by Hardly on 03/26/08 at 13:31:52

Howdy Back:

Because I want to match the degree of offset on a stock muffler and my Jardine.  and I want to extend the muffler outlet back past the rear axle.

Adios, David

Title: Re: Adapting Dyna Muffler
Post by T Mack 1 on 03/26/08 at 18:35:58

Ok,  hmmmmm....somethings to think about,

1) Remember that when you sit on the bike the swing arm changes angle, so you will never get a straight line up to anything other than the header pipe.  
2) The stock muffler is shaped funny so to make anything line up like that will be a real task.  
3) many people use Sporster mufflers and they sometimes need the angled pipe.   Sorry , not sure why, could be the mounting brackets.

Suggest trying a muffler shop to bend the pipe..  

You will need to do the following to get the "right" angle (pun intended): Get a piece of household wire (12-2 works good), then have someone sit on the bike. Line up the muffler how you think it looks best.  Support it some how (blocks of wood, old books, piles of magazines).  Then stand back and look at it.  Do a walk around too.  Once you're happy,  take that  wire and using the centerline of the muffler and the centerline of the pipe,  bend it to the angle you need.   Muffler shop can work from there.

Good Luck.   Send Pict's when done ;D

Title: Re: Adapting Dyna Muffler
Post by steely on 03/26/08 at 18:44:07


0D7414383A3268590 wrote:
they sometimes need the angled pipe.   Sorry , not sure why, could be the mounting brackets.


I think that the reason most people want the angled pipe is to keep the exhaust from dumping straight out on the rear brake arm and adjuster.  I have a Mac on mine and there are times I wish I had something with more of an angle in it for exactly that reason.

Title: Re: Adapting Dyna Muffler
Post by T Mack 1 on 03/26/08 at 18:52:15


686F7E7E77621B0 wrote:
[quote author=0D7414383A3268590 link=1206551598/0#3 date=1206581758] they sometimes need the angled pipe.   Sorry , not sure why, could be the mounting brackets.


I think that the reason most people want the angled pipe is to keep the exhaust from dumping straight out on the rear brake arm and adjuster.  I have a Mac on mine and there are times I wish I had something with more of an angle in it for exactly that reason.[/quote]

Aaaaaa  I see.....

And now I know why I like my turn out.... plus it distracts the cagers on their mobile phones in the  lane next to me ;D

Title: Re: Adapting Dyna Muffler
Post by steely on 03/26/08 at 18:56:29


0B72123E3C346E5F0 wrote:
plus it distracts the cagers on their mobile phones in the  lane next to me ;D


Hmmmmm, My next exhaust may have to be a turnout... ;D

Title: Re: Adapting Dyna Muffler
Post by Educatedredneck on 03/26/08 at 22:20:30

If my memory serves me right, I seem to remember someone on this forum suggesting turning the rear brake arm around to eliminate the issue of the exhaust soot from collecting on the arm itself.  If anyone has done this, please comment for I’m about install my Dyna exhaust on my bike and while I’m getting my tires replaced, I could flip the arm around.  It looks to me that the brake cable will still clear the tire.  Either way, I will be flipping the arm around and will comment if I find that this works.

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