Author Topic: K1/K1004V Fuel Supply & Adjustments —SB 13 023 91 2475 September 1991  (Read 483 times)

Offline volador

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  • NYC
  • 1991 K100RS 1993 K75S ABS
5 BOROUGHS SISYPHEAN SOCIETY "When Life Throws You A Curve... Lean Into It"  MAINTAINING THE OBSESSION
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Offline The Mighty Gryphon

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Re: K1/K1004V Fuel Supply & Adjustments —SB 13 023 91 2475 September 1991
« Reply #1 on: December 19, 2019, 08:31:41 PM »
There's no need for a KTE201 to set the TPS.

1. With the ignition OFF, connect pin #3 of the diagnostic plug to ground. 

2. Turn on the ignition.

3. If it isn't lit, loosen the mounting screws and adjust the TPS so the temperature warning lamp on the instrument  cluster lights up. 

4. Tighten the TPS mounting screws and rotate the throttle.  The temperature light should go out as soon as the throttle is moved off the idle position.

  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline volador

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Re: K1/K1004V Fuel Supply & Adjustments —SB 13 023 91 2475 September 1991
« Reply #2 on: December 20, 2019, 11:06:31 AM »
Throttle Position Sensor (TPS) Test:
To test the TPS
Ignition OFF, Ground Pin #3 and monitor Pin #1 with a 12V LED (+lead to Battery + and -lead to Pin#1).
Ignition ON, Engine OFF (Pin #3 should remain grounded during this test)

The Test LED will be ON at idle (closed throttle) and OFF just above idle. You should also be able to watch the temperature warning lamp on the tachometer blink ON at idle and OFF just above idle.
Pin #1 should be Low at idle and High just above idle. In other words, if you are measuring from ground to Pin #1 with a voltmeter, Idle should be close to 0 Volts and just above Idle should be close to 12 Volts. (This test also works for Oilheads (1994-2001) with Motronic 2.2 Engine control Units but since there is no temperature warning lamp, you must use either a voltmeter or a Test LED as described above).

NOTE: Measuring the voltage between pins 1 and 4 at the TPS connector should indicate
0.375 Volts at the idle setting (closed throttle) with ignition ON engine OFF.
Snap the throttle open/closed a few times to ensure a consistent reading. To adjust the TPS, loosen the two screws slightly and rotate the TPS until the temperature warning lamp (or the Test LED) 'just' comes ON at idle and goes OFF just above idle. If you are using a voltmeter, adjust the voltage to 0.375 at idle (closed throttle). This voltage MUST remain below 0.400 Volts at idle.

http://www.k11og.org/forum/viewtopic.php?t=2110&start=0&postdays=0&postorder=asc&highlight=

http://www.largiader.com/articles/motronic.html
  • NYC
  • 1991 K100RS 1993 K75S ABS
5 BOROUGHS SISYPHEAN SOCIETY "When Life Throws You A Curve... Lean Into It"  MAINTAINING THE OBSESSION
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Offline The Mighty Gryphon

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Re: K1/K1004V Fuel Supply & Adjustments —SB 13 023 91 2475 September 1991
« Reply #3 on: December 20, 2019, 12:45:13 PM »
You don't need the LED to set the TPS.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline Filmcamera

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Re: K1/K1004V Fuel Supply & Adjustments —SB 13 023 91 2475 September 1991
« Reply #4 on: December 20, 2019, 06:05:24 PM »
Very useful test procedure, thanks.


I did it today and my TPS was slightly off so I adjusted it. It is  a piece of cake to do.


I have not had a chance to go for a test ride yet but will report back when I do. 


Thanks again.
  • San Jose, Costa Rica
  • 1991 K100RS 16v ABS1, 2018 Triumph Street Triple RS 765
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Offline TommyT

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Re: K1/K1004V Fuel Supply & Adjustments —SB 13 023 91 2475 September 1991
« Reply #5 on: December 20, 2019, 07:59:50 PM »
I also tried this on my 1991 K100RS 16V, the light when off as soon as I slightly turned the throttle.   
  • Olive NY
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Offline The Mighty Gryphon

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Re: K1/K1004V Fuel Supply & Adjustments —SB 13 023 91 2475 September 1991
« Reply #6 on: December 20, 2019, 11:37:56 PM »
I also tried this on my 1991 K100RS 16V, the light when off as soon as I slightly turned the throttle.

That's what it's supposed to do.  Sounds like you got it right.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE
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