Megaphone Baffle Packing

  • daveo
  • daveo's Avatar Topic Author
  • Offline
  • Premium Member
  • Posts: 2859
  • Thanks: 712

Megaphone Baffle Packing

01 Sep 2020 19:30
#834190
Liking to quiet the exhaust sound down, and wonder if fiberglass packing will produce the best result?
There is no quiet-baffle available that I am aware of.

Currently using the V&H Street Baffle with no sound deadening material.

1982 KZ1100-A2

Attachments:

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • 10 22 2014
  • Posts: 23169
  • Thanks: 2804

Re: Megaphone Baffle Packing

01 Sep 2020 19:47
#834192
No eBay APP ID and/or Cert ID defined in Kunena configurationGet the mat type. It will do the job and last longer.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
The following user(s) said Thank You: daveo

Please Log in or Create an account to join the conversation.

  • daveo
  • daveo's Avatar Topic Author
  • Offline
  • Premium Member
  • Posts: 2859
  • Thanks: 712

Re: Megaphone Baffle Packing

02 Sep 2020 05:51
#834203
Is there a better way to do it, than just wrapping it tight and stuffing as much in as possible?

When the header was all shiny new ten years ago, the baffle had a thin fiberglass sheet held together with a couple pieces of tape.
That sheit ended up a shredded mess in short order, and something bout that didn't seem right.

:blink:

.
1982 KZ1100-A2

Please Log in or Create an account to join the conversation.

  • loudhvx
  • loudhvx's Avatar
  • Offline
  • KZr Legend
  • Posts: 10864
  • Thanks: 1615

Re: Megaphone Baffle Packing

02 Sep 2020 09:59
#834209
I use thin steel wire to hold the glass mat. Tape can melt and make it difficult to remove the mat later.

I only use mat specific to exhausts, like what is shown. Construction fiberglass insulation supposedly disintegrates over time.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
The following user(s) said Thank You: daveo

Please Log in or Create an account to join the conversation.

  • DoctoRot
  • DoctoRot's Avatar
  • Offline
  • Sustaining Member
  • Oh, the usual... I bowl, I drive around...
  • Posts: 2548
  • Thanks: 681

Re: Megaphone Baffle Packing

02 Sep 2020 11:34
#834215
its preferable to use stainless steel wool in on the inside and fiberglass on the outside as it handles the heat better than fiberglass. I use safety wire to hold the matt on. this will make it quieter at idle but the only way to really quiet down an exhaust at full tilt is to increase the volume of the muffler.
'78 1000 Long Term Project
 '80 750G
 750 Twin Big Bore Track Bike
The following user(s) said Thank You: daveo

Please Log in or Create an account to join the conversation.

  • daveo
  • daveo's Avatar Topic Author
  • Offline
  • Premium Member
  • Posts: 2859
  • Thanks: 712

Re: Megaphone Baffle Packing

02 Sep 2020 12:48
#834225
No eBay APP ID and/or Cert ID defined in Kunena configuration
DoctoRot wrote: its preferable to use stainless steel wool in on the inside and fiberglass on the outside as it handles the heat better than fiberglass. I use safety wire to hold the matt on. this will make it quieter at idle but the only way to really quiet down an exhaust at full tilt is to increase the volume of the muffler.

How many wraps do you suggest applying around the baffle, and how tightly?


Is this the SS wool you recommended using?

1982 KZ1100-A2

Please Log in or Create an account to join the conversation.

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • 10 22 2014
  • Posts: 23169
  • Thanks: 2804

Re: Megaphone Baffle Packing

02 Sep 2020 16:22
#834243
I don't think that's needed. My baffles came with the usual packing with the wire in a cross pattern. The mat works well. I'd wrap it for a tight fit.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

Please Log in or Create an account to join the conversation.

  • DoctoRot
  • DoctoRot's Avatar
  • Offline
  • Sustaining Member
  • Oh, the usual... I bowl, I drive around...
  • Posts: 2548
  • Thanks: 681

Re: Megaphone Baffle Packing

03 Sep 2020 10:45 - 03 Sep 2020 10:48
#834301
just one layer of the stainless. Stainless doesn't dampen the sound as well as fiberglass but it handles the heat much better. This is the kit I used the last time I repacked the mufflers on my Aprilia, it comes with a stainless mesh as well. I would wrap as much as you can and as tight as you can and still get it in there. www.amazon.com/gp/product/B00EDA0UXU/ref..._title?ie=UTF8&psc=1
'78 1000 Long Term Project
 '80 750G
 750 Twin Big Bore Track Bike
Last edit: 03 Sep 2020 10:48 by DoctoRot.

Please Log in or Create an account to join the conversation.

  • undiablo
  • undiablo's Avatar
  • Offline
  • User
  • Posts: 436
  • Thanks: 64

Re: Megaphone Baffle Packing

03 Sep 2020 12:08
#834307
Hello.
I did this to quiet even more my V&H megaphone. Hope it helps.

Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires

Attachments:

Please Log in or Create an account to join the conversation.

  • Highway Magician
  • Highway Magician's Avatar
  • Offline
  • User
  • Posts: 79
  • Thanks: 33

Re: Megaphone Baffle Packing

03 Sep 2020 12:53
#834310
No eBay APP ID and/or Cert ID defined in Kunena configurationUse this:

Motorcycle builder since 1973. Master Tech. Current bike: 1982 GPZ1100B2.

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum