Author Topic: 86 K100RS rough idle when warm  (Read 4908 times)

Offline zipster68

  • ^ Motobrick Curious
  • Posts: 104
86 K100RS rough idle when warm
« on: November 05, 2016, 06:34:42 PM »
Rough idle once warmed up.  I was going to clean the main wiring connectors under the tank, but I honestly don't know how you guys get at them (without complete tank removal).  I have maybe a half inch gap.

Any ideas?  Z hose new, plugs new.  Very clean tank and fuel.  Runs great and pulls hard cold, but is missing at idle once it warms up.  Can feel once cylinder dropping out when I pull away from a stop.   Higher rpm's seems fine.  Starts easy.
Cheers,
Ray
  • Ferndale, Michigan
  • 1986 K100RS, 1977 naked Goldwing, 1975 Yamaha RD350 smoker, 1978 Vespa P200, 1980 Lambretta Jet 200

Offline Elipten

  • ^ SuperNatural Motobricker
  • Posts: 715
Re: 86 K100RS rough idle when warm
« Reply #1 on: November 05, 2016, 10:41:17 PM »
Removing tank is easy


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  • San Antonio, TX
  • 1990 K75RT

Offline bmwcyclist

  • ^ Motobrick Curious
  • Posts: 53
Re: 86 K100RS rough idle when warm
« Reply #2 on: December 01, 2019, 09:23:31 PM »
Did you fix this issue? If so can you share?

Thanks!
  • Batavia Oh
  • K75 1990, K75RT 1995

Offline Laitch

  • Faster than a speeding pullet
  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 11299
Re: 86 K100RS rough idle when warm
« Reply #3 on: December 01, 2019, 09:46:04 PM »
Did you fix this issue? If so can you share?
I found this response in his posts during the next year. It's likely the source of his original complaint.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles
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