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Author Topic: 1986 K100 air intake fine tuning  (Read 6631 times)

Offline Zorman

  • Motobrick Curious
  • Posts: 12
1986 K100 air intake fine tuning
« on: November 13, 2016, 06:31:51 PM »
Need to balance my air intake at the throttle body. There are some dust caps next to the adjustment screws (see attached picture). Does the fit of these caps influence anything or they just keep dust out? A  few of them have cracks and do not fit super tightly any more and I was just gonna get replacements from the local hardware store. I don't have a BMW dealer on the island I live.

Zoltan
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Offline The Mighty Gryphon

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Re: 1986 K100 air intake fine tuning
« Reply #1 on: November 13, 2016, 06:33:45 PM »
A tight fit is crucial to a smooth idle.  Replace them.  Hardware store caps are ok as long as they fit snug.
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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Zorman

  • Motobrick Curious
  • Posts: 12
Re: 1986 K100 air intake fine tuning
« Reply #2 on: December 03, 2016, 03:52:39 PM »
Thanks for that info !  :2thumbup:  Got caps that fit, not fan of the color, but can't be picky for $0.25/ea.
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Offline Laitch

  • Faster than a speeding pullet
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Re: 1986 K100 air intake fine tuning
« Reply #3 on: December 03, 2016, 04:04:42 PM »
Quote from: Zorman on December 03, 2016, 03:52:39 PM
Got caps that fit, not fan of the color. . .
Those are almost exactly the color and size of the fruit from Viburnum opulus var. americanum, Zorman. Don't be surprised to see Robins perched on the side stand staring intently up at them.
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  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline Martin

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  • Posts: 4475
Re: 1986 K100 air intake fine tuning
« Reply #4 on: December 03, 2016, 04:19:08 PM »

To set them off draw little smiley faces on them with a fine marker. That will confuse the pondering Robins.
Regards Martin.
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  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline TrueAce

  • ^ SuperNatural Motobricker
  • Posts: 973
Re: 1986 K100 air intake fine tuning
« Reply #5 on: December 03, 2016, 09:56:46 PM »
I prefer black magic marker.  :euro
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  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

Offline jakgieger

  • itinerant farmer
  • ^ SuperNatural Motobricker
  • Posts: 618
Re: 1986 K100 air intake fine tuning
« Reply #6 on: December 03, 2016, 10:15:01 PM »
Zorman,

In your picture, it looks like you are developing cracks in these?  Are you experiencing other signs of idle/power irregularity?
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  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."
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