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Author Topic: switching sides of exhaust on 86' k100  (Read 11778 times)

Offline kmart67

  • Curious
  • Posts: 9
switching sides of exhaust on 86' k100
« on: August 07, 2016, 10:27:25 AM »
Hey all, just wondering if the tune will be thrown out of whack by changing the side of the exhaust? ie different pipe bends and what-not.
Want to showcase the open wheel!!
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  • Ontario, Canada
  • 86' k100 RT

Offline Chaos

  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 3159
  • Mars needs women!
Re: switching sides of exhaust on 86' k100
« Reply #1 on: August 07, 2016, 10:44:03 AM »
If the bends are after the collector where the individual pipes come together it should be fine, love to see a pic when you get it done
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  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline kmart67

  • Curious
  • Posts: 9
Re: switching sides of exhaust on 86' k100
« Reply #2 on: August 07, 2016, 11:32:56 AM »
That's just it...it might have to be before the collector to make it around the centre stand and for over all (tight) fit.
If anything though it might increase the back pressure?? Maybe ain't nothin' to it , but to do it! I've seen the tailpipe chopped online, which would be easy, but super loud. Not feasible. And thanks for the reply. will send a pic for sure!
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  • Ontario, Canada
  • 86' k100 RT

Offline Chaos

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  • Posts: 3159
  • Mars needs women!
Re: switching sides of exhaust on 86' k100
« Reply #3 on: August 07, 2016, 11:48:10 AM »
I think the important thing is to keep the header the same length, but it might not be that big an issue.  here's another idea...
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  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline Laitch

  • Faster than a speeding pullet
  • Administrator
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  • Posts: 11648
Re: switching sides of exhaust on 86' k100
« Reply #4 on: August 07, 2016, 10:46:27 PM »
Quote from: kmart67 on August 07, 2016, 10:27:25 AM
Hey all, just wondering if the tune will be thrown out of whack by changing the side of the exhaust?
This guy didn't seem to care. The exhaust flames act as foot warmers during cold weather rides.
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  • Along the Ridley in Vermont.
  • 1995 K75 102,000 miles

Offline TrueAce

  • ^ SuperNatural Motobricker
  • Posts: 973
Re: switching sides of exhaust on 86' k100
« Reply #5 on: August 10, 2016, 11:50:29 PM »
You will decrease back pressure because you are eliminating the large choking muffler. The engine will be OK, but it will be a loud bike.
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  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

Offline kmart67

  • Curious
  • Posts: 9
Re: switching sides of exhaust on 86' k100
« Reply #6 on: August 15, 2016, 07:05:48 PM »
Thanks so much everyone, looks like I have some research to do before mods are applied.   :2thumbup:
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  • Ontario, Canada
  • 86' k100 RT

Offline rbm

  • ^ Quintessential Motobricker
  • Posts: 2308
Re: switching sides of exhaust on 86' k100
« Reply #7 on: August 15, 2016, 08:01:33 PM »
Larry from SpecialKs did a 4 - 2 conversion on his "Beast" (a K1200 powered K1100).  Go to the web site and examine the pictures for The Beast to understand how he accomplished this.
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  • Regards, Robert
Toronto, Ontario

1987 K75 - Build Blog @http://k75retro.blogspot.ca/

Offline The Dude

  • ^ SuperNatural Motobricker
  • Posts: 509
Re: switching sides of exhaust on 86' k100
« Reply #8 on: August 15, 2016, 09:13:41 PM »
Quote from: TrueAce on August 10, 2016, 11:50:29 PM
You will decrease back pressure because you are eliminating the large choking muffler. The engine will be OK, but it will be a loud bike.
I ran a straight through exhaust for a couple of months.Absolute howler.Not good,long term for exhaust valves.Ah,who cares?
The practice of parting the traffic for "the noise" was empowering.
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  • Auckland, New Zealand
  • K75s
Current.
TR6R 1973 from new.
Moto guzzi 850 III .1983 from,almost, new.
K75S 1986 from new.vin-0103141
On my second millionth km.give or take a hundred k Kay's.
"The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there."
All the best!

Offline duckytran

  • ^ Proficient Motobricker
  • Posts: 211
Re: switching sides of exhaust on 86' k100
« Reply #9 on: September 14, 2016, 05:45:12 PM »
Here's a pic of a right side exhaust that cafe4racer.eu sell. They have other pics that will give you an idea on how they did it.
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  • Austin, Texas
  • 1993 K75, 1981 R65

Offline The Dude

  • ^ SuperNatural Motobricker
  • Posts: 509
Re: switching sides of exhaust on 86' k100
« Reply #10 on: September 14, 2016, 10:31:26 PM »
Very nice! No rain in Texas?
Three of them,too much?Remember the Huricane.
Yee ha.
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  • Auckland, New Zealand
  • K75s
Current.
TR6R 1973 from new.
Moto guzzi 850 III .1983 from,almost, new.
K75S 1986 from new.vin-0103141
On my second millionth km.give or take a hundred k Kay's.
"The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there."
All the best!

Offline Laitch

  • Faster than a speeding pullet
  • Administrator
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  • Posts: 11648
Re: switching sides of exhaust on 86' k100
« Reply #11 on: September 14, 2016, 10:40:01 PM »
Quote from: The Dude on September 14, 2016, 10:31:26 PM
No rain in Texas?
Drainage holes bored into the lower ends of the pipes are factory options.
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  • Along the Ridley in Vermont.
  • 1995 K75 102,000 miles

Offline sj2000

  • ^ Proficient Motobricker
  • Posts: 133
Re: switching sides of exhaust on 86' k100
« Reply #12 on: September 29, 2016, 06:37:16 PM »
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  • Parker, USA
  • 1985 K100
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