1 Weird Speedo issue post fix Wed Jun 28, 2023 10:03 pm
ark100
active member
I previously had issues with the speedo which were resolved in this previous thread:
https://www.k100-forum.com/t18500-broke-my-speedo-fixing-my-speedo-solved
At the end of the journey, it worked but I had put it back together without a piece of foam that backed the odometer.
So I pulled it apart again, reinserted the tiny piece of foam and put it back together again and blam. No more working. Speedo is completely dead again but everything else works.
I pulled it apart again and put it back together again but this time i did not put the back housing back on (to speed up testing). Now it works.
Put the housing back on and try again and it doesn't work.
What the hell is happening here? My best guesses are that either there is a poor contact between the two plugs that plug into the back of the cluster which are able to make contact when the housing backing isn't on OR something is being shorted when the housing is back together.
It should also be noted that the pins coming out of the device, 3 of them are broken off their solder but are still making contact when it's put together. My next step was going to be to solder these back together again though I already deoxited them so that they were not having corrosion issues.
I'm confused as to why it worked once, then stopped.
At the end of the last post, I now have at my disposal the following tools:
- Multimeter.
- Deoxit.
- Copper tape with conductive adhesive.
- Silica packets for moisture.
I don't have a 12v power source to test things though other than the actual battery, nor the knowledge (yet) to know what to do with testing that.
Photos attached are: Arrows pointing to the loose pins & a circle showing the foam piece I put back together prior to the speedo stopping again.
I'm certain that this will wind up being just an unrelated poor connection but any insight is well appreciated as I'm eager to get riding.
https://www.k100-forum.com/t18500-broke-my-speedo-fixing-my-speedo-solved
At the end of the journey, it worked but I had put it back together without a piece of foam that backed the odometer.
So I pulled it apart again, reinserted the tiny piece of foam and put it back together again and blam. No more working. Speedo is completely dead again but everything else works.
I pulled it apart again and put it back together again but this time i did not put the back housing back on (to speed up testing). Now it works.
Put the housing back on and try again and it doesn't work.
What the hell is happening here? My best guesses are that either there is a poor contact between the two plugs that plug into the back of the cluster which are able to make contact when the housing backing isn't on OR something is being shorted when the housing is back together.
It should also be noted that the pins coming out of the device, 3 of them are broken off their solder but are still making contact when it's put together. My next step was going to be to solder these back together again though I already deoxited them so that they were not having corrosion issues.
I'm confused as to why it worked once, then stopped.
At the end of the last post, I now have at my disposal the following tools:
- Multimeter.
- Deoxit.
- Copper tape with conductive adhesive.
- Silica packets for moisture.
I don't have a 12v power source to test things though other than the actual battery, nor the knowledge (yet) to know what to do with testing that.
Photos attached are: Arrows pointing to the loose pins & a circle showing the foam piece I put back together prior to the speedo stopping again.
I'm certain that this will wind up being just an unrelated poor connection but any insight is well appreciated as I'm eager to get riding.
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Sydney, AU.
1984 K100 all original