Repack original mufflers?

TheForumTroll
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Repack original mufflers?

19 Jun 2014 17:03

I was going to repack my original mufflers but looking at them it seems like a closed system. Is it possible to take them apart or are they indeed a closed system?

-[ KZ700-A1 '84 ]-

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MFolks
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Re: Repack original mufflers?

19 Jun 2014 18:26

#637225

Pictures will help, who made the system? On most of these, drilling out the pop rivets, re-packing the muffler & re-installing the rivets, is about all you'll need to do.

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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TheForumTroll
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Re: Repack original mufflers?

19 Jun 2014 19:04

#637228

Kawasaki I'd guess since it's original. So removing the rivets is needed, I see. It does have replaceable packing though right?

-[ KZ700-A1 '84 ]-

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MFolks
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Re: Repack original mufflers?

19 Jun 2014 19:16

#637230

Most do, usually fiberglass. You'll need gloves to handle this stuff. When I repack my bike's system (a Kerker K2S), I get the packing positioned around the baffle, and place at three places some 0.032" SS safety wire. It keeps it on the baffle better than masking tape does.

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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TheForumTroll
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Re: Repack original mufflers?

19 Jun 2014 19:19

#637231

Thanks. I'll get some rivets and have a go at it.

-[ KZ700-A1 '84 ]-

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MFolks
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Re: Repack original mufflers?

19 Jun 2014 19:20

#637233

To remove the rivets, you'll need 1/8" diameter drill bits, a 1/8" pin punch, hammer, and replacement rivets. If you don't have one, you'll need the pop rivet gun rivet . I think Harbor Freight has the rivets and gun. If no luck there, go to the nearest hardware store and ask them.

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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martin_csr
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Re: Repack original mufflers?

19 Jun 2014 19:27 - 20 Jun 2014 05:51

#637234

I could be wrong, but the stock mufflers may not have fiberglass packing.
I think there are a series of tubes & plates or something.

Here's a photo from a factory service manual posted by 650ed over at the KZ650.Info site.

KZ650-B/C

1981 KZ650 Competition Sports and Road

Last edit: 20 Jun 2014 05:51 by martin_csr.

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Re: Repack original mufflers?

20 Jun 2014 10:29

#637280

Hmm, it doesn't look the same on the outside as the one in the picture but it might be like that. I've removed the rivets but that didn't do much as the back plate is stuck.

-[ KZ700-A1 '84 ]-

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martin_csr
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Re: Repack original mufflers?

20 Jun 2014 12:33 - 20 Jun 2014 14:50

#637295

The 82 650 has megaphone mufflers (instead of the reverse cone type in the pic) & I'm pretty sure they are constructed similarly as in the photo. I'd guess most if not all KZ mufflers are made pretty much the same way.... just a guess. It would seem rather hard to believe that Kawasaki would use fiberglass and not provide for a way to change it out.

1981 KZ650 Competition Sports and Road

Last edit: 20 Jun 2014 14:50 by martin_csr.

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Re: Repack original mufflers?

20 Jun 2014 14:43

#637315

Yeah, it sounds like the same system then. As long as there is no maintenance needed it's fine with me. I'll just polish them a bit instead then :lol:

-[ KZ700-A1 '84 ]-

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