Kerker Muffler - re-pack it or get something else? [pix] - XS11.club Forums

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Andy_WI

XSive

Join Date: Jun 2016

Posts: 34

Location: Tomah, WI
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#1

Kerker Muffler - re-pack it or get something else? [pix]

06-23-2016, 10:13 PM

I've managed to take my Kerker muffler apart today - thanks to almighty oxy acetylene torch. It looks like baffle rusted out from the inlet tube.
I have 4 into 1 exahust with 2.0" outlet. It would be easy to weld that tube back to the baffle.
re-pack it OR should I get a different muffler?
I've read that Kerker is one of the most high performance free-flowing systems but it seems to me that baffle pipe that sticks out from the muffler (on the inlet) is slightly restrictive. Though I know I need some backpressure (?). So should I just pack it and put it on the bike and be done with it? Thanks.

Weld this baffle and this tube

Restrictive baffle inlet tube?

Outlet and baffle close up

1980 XS1100SG
1991 HONDA CIVIC EF
1998 DODGE RAM 1500
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IanDMacDonald

XS-XJ Super Guru

Join Date: Oct 2010

Posts: 3911

Location: Grand Blanc & Fenton, MI
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#2

06-24-2016, 03:14 AM

Stick with what works! Plus, that baffle quiets the bike down. Buy some fiberglass packing, roll it up tight, wrap it in safety wire, and ride-on!

1979 XS1100F
2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.
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Andy_WI

XSive

Join Date: Jun 2016

Posts: 34

Location: Tomah, WI
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#3

06-24-2016, 07:07 AM

IanDMacDonald - Sir, Yes, Sir!

1980 XS1100SG
1991 HONDA CIVIC EF
1998 DODGE RAM 1500
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bikerphil

Master of XSology

Join Date: Jan 2008

Posts: 8568

Location: South Flori-DUH
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#4

06-24-2016, 11:06 AM

I run my Kerker without the fiberglass wrap, sounds great, not too loud, YMMV.

2H7 (79) owned since '89
3H3 owned since '06

"If it ain't broke, modify it"

☮
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DiverRay

Moderator

Join Date: Nov 2004

Posts: 7513

Location: Star, IDAHO
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#5

07-01-2016, 03:32 PM

I had to rebuild the baffle for mine from scratch! It worked when I was done, but I DID end up wrapping it to keep the noise down a little.

Ray Matteis
KE6NHG
XS1100 E '78 (winter project)
XS1100 SF Bob Jones worked on it!
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