Author Topic: 91 100 RS 16v coolant sensor  (Read 4332 times)

Offline TommyT

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91 100 RS 16v coolant sensor
« on: November 22, 2019, 01:29:15 PM »
Is the Coolant sensor number 13 in the attached diagram,  NTC plug? The bike starts great, idles greats, runs great for about 15 minutes and then it blogs down a little at first, then more and more.  I am guessing for now that the Motronic system is thinking that the engine is still cold and I like to check the sensor to see if it is working, if I can find it first. What does NTC stand for?

Oh BTW the temp gage is not showing any readings either if that matters.
  • Olive NY
  • 1990 K75RT (RS), 1991 K100 16V

Offline The Mighty Gryphon

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Re: 91 100 RS 16v coolant sensor
« Reply #1 on: November 22, 2019, 01:57:03 PM »
NTC is the abbreviation for Negative Temperature Coefficient.  As the temperature goes up the resistance goes down. 

If my memory is correct, the resistance is about 2500 ohms at room temperature and about 200 ohms at engine operating temperature.
  • 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 Laitch

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Re: 91 100 RS 16v coolant sensor
« Reply #2 on: November 22, 2019, 02:02:51 PM »
. . . I like to check the sensor to see if it is working, if I can find it first.
The text on the diagram you've provided explains how you can find it.

The temperature gauge on the dash is connected to a sensor that takes the place of the combo pump drain plug. Its reading is a separate function unrelated to the coolant temperature (NTC) sensor.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline TommyT

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Re: 91 100 RS 16v coolant sensor
« Reply #3 on: November 22, 2019, 02:31:06 PM »
NTC is the abbreviation for Negative Temperature Coefficient.  As the temperature goes up the resistance goes down. 

If my memory is correct, the resistance is about 2500 ohms at room temperature and about 200 ohms at engine operating temperature.

NTC =  Negative Temperature Coefficient, gee why didn't I figure that out. I used to attend a weekly technical meeting which the leader was not as technical as the attendees. He had a rule that you had to use the full meaning of an acronym before its use and then you could use it freely. Failure to do so resulted in putting $1 into a jar which brought pizza for lunch at the end of the month. there was usually a lot of pizza at the end of the month. the ex military people had the hardest time with that rule.

thanks I will pull it and test it soon.
  • Olive NY
  • 1990 K75RT (RS), 1991 K100 16V

Offline Laitch

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Re: 91 100 RS 16v coolant sensor
« Reply #4 on: November 22, 2019, 03:12:45 PM »
NTC =  Negative Temperature Coefficient, gee why didn't I figure that out.
One reason might be that you didn't utilize a Google search with the search term define NTC.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline stokester

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Re: 91 100 RS 16v coolant sensor
« Reply #5 on: November 22, 2019, 03:59:42 PM »
the ex military people had the hardest time with that rule.

All the branches have their own lingo, as a retired AF member I always found the USN abbreviations/acronyms a mystery.
I would have contributed a lot to the pizza fund.
  • Yorktown Virginia
  • '94 K75S Dakar Yellow - '93 K75S Seiden Blau - '91 R100RT Bermuda Blue- '78 R100S Smoke Red

Offline TommyT

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Re: 91 100 RS 16v coolant sensor
« Reply #6 on: November 22, 2019, 05:30:42 PM »
One reason might be that you didn't utilize a Google search with the search term define NTC.
I did try but i only  did NTC, i got National Traing Center
  • Olive NY
  • 1990 K75RT (RS), 1991 K100 16V

Offline Laitch

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Re: 91 100 RS 16v coolant sensor
« Reply #7 on: November 22, 2019, 08:29:10 PM »
I did try but i only  did NTC, i got National Traing Center
You must type the word define preceding NTC, or any other term, initial or word you're searching. In the half-dozen times I've done that with a cleared history, the definition of Negative Temperature Coefficient was presented. I even located the definition when using your term, NTC plug. It wasn't the first definition but it was among the hits on the first page.

These search engines are fantastic tools.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline Past-my-Prime

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Re: 91 100 RS 16v coolant sensor
« Reply #8 on: November 23, 2019, 09:42:35 AM »
I figured that it had something to do with my moto's potential desire to end my life suddenly, and there was a mod you could put on that would mitigate that?

NTC   National Training Center   
NTC   National Telecommunications Commission   
NTC   Notice   
NTC   Negative Temperature Coefficient   
NTC   Nourish the Children   
NTC   National Transport Commission (Australia)   
NTC   Network Training Center   
NTC   Navajo Technical College (Crownpoint, NM)   
NTC   Naval Training Center   
NTC   Nashville Technology Council (Nashville, TN)   
NTC   Nazarene Theological College (UK)   
NTC   Nessuno Tocchi Caino (Italian: Hands Off Cain; anti-death penalty group)   
NTC   National Teleconsultants (California)   
NTC   Notice to Contractors (various locations)   
NTC   Northcentral Technical College (Wisconsin)   
NTC   National Tobacco Company (Wisconsin)   
NTC   Nuu-Chah-Nulth Tribal Council (Canada)   
NTC   National Team Championship   
NTC   No Trade Clause   
NTC   Nautical Training Corps (UK)   
NTC   National Transitional Council (Libya)   
NTC   National Textbook Company   
NTC   Neighborhood Traffic Calming (various locations)   
NTC   Nano-Photonics Technology Center (Polytechnic University of Valencia; Spain)   
NTC   National Textile Center (North Carolina State University)   
NTC   Nordic Telephone Company (Denmark)   
NTC   Net Tropical Cyclone Activity   
NTC   National Tariff Commission (Pakistan)   
NTC   National Targeting Center   
NTC   National Theatre for Children (Minneapolis, MN)   
NTC   National Tuberculosis Center (Nepal)   
NTC   National Tax Conference   
NTC   Norfolk Technical Center (Virginia)   
NTC   Nissan Technical Center (Atsugi, Japan)   
NTC   No Template Control (molecular biology experiments)   
NTC   New Trust Company   
NTC   Nokia Telecommunications   
NTC   North Trafford College (UK)   
NTC   Norwegian Trade Council   
NTC   National Tracing Center (ATF)   
NTC   National Teachers College (Manila, Philippines)   
NTC   National Technology Center   
NTC   National Troopers Coalition   
NTC   Nepal Telecommunication Corporation   
NTC   National Telecommunications Corporation (Pakistan)   
NTC   Non-Traditional Career   
NTC   Nanophase Technologies Corporation (Burr Ridge, Illinois)   
NTC   No Te Creas   
NTC   National Transportation Center   
NTC   National Teleregistration Center   
NTC   Net Transfer Capacities   
NTC   Net Tax Capacity   
NTC   Nippon Transport Corporation (Japan)   
NTC   Noshiro Testing Center (Japan)   
NTC   Nano-Technology Council (IEEE Council)   
NTC   No Te Calientes (Spanish slang; equivalent to calm down or chill)   
NTC   New Theological College (India)   
NTC   Networks Telephony Corporation   
NTC   Network Trunk Card (Cisco)   
NTC   Network Testing Committee   
NTC   Navajo Tribal Council   
NTC   Nan Tan Computer (Taiwan, ROC)   
NTC   NASA Teleconferencing Center   
NTC   Node Transition Count   
NTC   National Television Center (ITU-T)   
NTC   Nye Thermodynamics Corporation (Canada)   
NTC   Network Transmission Control   
NTC   Network Test Center (informatics, University Of Hamburg)   
NTC   New Technologies Committee   
NTC   Nanoscience and Technology Center   
NTC   Night Terrain Contour   
NTC   Nighttime Temporary Traffic Control   
NTC   National Transmittal Center   
NTC   National Technology Committee   
NTC   Nord Triumph Club (French automobile club)   
NTC   Net Touring Cost (Australia)   
NTC   Nonthermal Coupling   
NTC   Northland Transportation Company (predecessor of Greyhound)   
NTC   National Terrorism Center   
NTC   Naval Telecommunication Command   

Note: We have 250 other definitions for NTC in our Acronym Attic

    new searchs uggest new definition

    Abbreviation Database Surfer
    « Previous
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    NTBS
    NTBSA
    NTBSS
    NTBT
    NTBTC

    NTBTS
    NTBU
    NTBUSWAB
    NTBV
    NTBWG

    NTC I
    NTC II
    NTC-IS
    NTC-M
    NTC-MW

    NTC-OIS
    NTCA
    NTCAR
    NTCASC
    NTCAVAL

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Offline The Mighty Gryphon

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Re: 91 100 RS 16v coolant sensor
« Reply #9 on: November 23, 2019, 03:42:52 PM »
Maple syrup interweb servers automatically filter,out the incorrect search results.  You need to relocate to Vermont County.
  • 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"

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