Author Topic: K75s dash backlights not working  (Read 2352 times)

Offline CodyP

  • Motobrick Curious
  • Posts: 10
K75s dash backlights not working
« on: August 08, 2020, 04:57:15 PM »
Ok so I bought this 1988 a few months ago but a few things have happened. I gave it a quick wash the other day, rode the day after and noticed condensation in the dash. Took it apart to replace bulbs and saw quite a bit of corrosion in there. Cleaned it up the best I could but I’m wondering if the blue ribbon carries the dash illumination cause there are a few spots that were coming apart and corroded. I get no dash lights now when the bikes turned or or running in my semi dark garage. Any advice besides buying a new cluster?
  • my garage
  • 1988 BMW K75s

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4475
Re: K75s dash backlights not working
« Reply #1 on: August 08, 2020, 05:49:43 PM »
You can repair the traces on the flexible circuit. Easy way to redraw the broken traces with a conductive in pen, cleaning carefully at both ends. The pens are available from your friendly electronics store. The another way is to by a length of multicoloured ribbon cable available at the same place. Find both ends of the broken trace and solder in a strand of the cable on to where it starts at a solid terminal to where it terminates at a solid terminal.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

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