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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: pinhead on March 14, 2024, 09:27:25 PM

Title: Cold running problem 1985 KRT1000
Post by: pinhead on March 14, 2024, 09:27:25 PM: I have this problem that has plagued this bike for the past year. It will cold start fine and then run a short while than conk out and won't start. I have to turn the key off and let it set for a minute or two. Then it will fire up. After I get it warmed up, no problems it will restart easy. What are the sensors, units on this bike that could affect this and where on the bike are they located? thanks
Title: Re: Cold running problem 1985 KRT1000
Post by: blackie1 on March 15, 2024, 04:07:27 AM: H.E.S.
Title: Re: Cold running problem 1985 KRT1000
Post by: Chaos on March 15, 2024, 08:48:24 AM: HES usually fails after it gets hot. This situation seems a little more interesting.
Title: Re: Cold running problem 1985 KRT1000
Post by: daveson on March 15, 2024, 03:41:27 PM: Maybe it's a bad coil or two, even more so if your brick is the earlier model. Or a spark plug, or lead.
Title: Re: Cold running problem 1985 KRT1000
Post by: The Mighty Gryphon on March 15, 2024, 04:13:55 PM: Temperature sensor or it's wiring. What is resistance between pins 10 and 13?
Title: Re: Cold running problem 1985 KRT1000
Post by: pinhead on March 16, 2024, 04:35:41 PM: Quote from: The Mighty Gryphon on March 15, 2024, 04:13:55 PM
Temperature sensor or it's wiring. What is resistance between pins 10 and 13?
thanks. where is that temperature sensor located so I can check it?
Title: Re: Cold running problem 1985 KRT1000
Post by: Laitch on March 16, 2024, 10:49:58 PM: Quote from: The Mighty Gryphon on March 15, 2024, 04:13:55 PM
What is resistance between pins 10 and 13?
Quote from: pinhead on March 16, 2024, 04:35:41 PM
where is that temperature sensor located so I can check it?
The pins used in the resistance test of the temperature sensor are located on the LE Jetronic fuel injection control unit plug attached to the control unit under the seat.
(https://www.motobrick.com/gallery/4/1601-160324224652.png)
Title: Re: Cold running problem 1985 KRT1000
Post by: pinhead on March 19, 2024, 02:39:51 PM: OK. I have decided to replace the temperature sensor. I called BMW dealership and they no longer stock the part. Anyone have a suggestion where I can get a genuine bosch sensor?
Title: Re: Cold running problem 1985 KRT1000
Post by: Laitch on March 19, 2024, 06:10:35 PM: https://www.euromotoelectrics.com/TEMPSENS-K197OE-p/tempsens-k197oe.htm (https://www.euromotoelectrics.com/TEMPSENS-K197OE-p/tempsens-k197oe.htm)