BMW K bikes (Bricks)

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1Back to top Go down   speedo testing Empty speedo testing on Sun Apr 19, 2015 7:33 pm

Rockman

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The odometer and trip meter n my K100 RT dont work. I have a couple of spares. One consists of most of the internal workings including a complete speedo with what look like good gears etc. I can see that it is connected to the rest of the panel wiring by 3 grey wires. What I want to do, I think, is test that the speedo actually works before I swap it over. So the question is how. I assume I can either test the resistances between the grey wires or apply a voltage across them to test. Mainly I want to see if the speedo moves as it should as I can work the odometer and trip meter by hand and everything there seems good. Can anybody help?

    

2Back to top Go down   speedo testing Empty Re: speedo testing on Sun Apr 19, 2015 8:36 pm

RicK G

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Remove the speed sensor (don't disconnect it) and hold a 240v soldering iron right next to the sensor. The magnetic field will induce a signal so the speedo registers 61kph as long as the key is on. Plug the other speedo in and test it.
On the big plug there are 2 types of pins round and square from what I gather they don't mix well.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

3Back to top Go down   speedo testing Empty Re: speedo testing on Mon Apr 20, 2015 2:57 am

Rockman

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Thanks Rick. Sounds easy enough. Will this also make the odometer gears move as well?

    

4Back to top Go down   speedo testing Empty Re: speedo testing on Mon Apr 20, 2015 3:45 am

RicK G

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It sure will.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

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