K100RS Electrical issue - K-Bikes.com - Excellence in Motion
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post #1 of 2 (permalink) Old Jul 17th, 2019, 3:08 pm Thread Starter
Join Date: Jul 2019
Posts: 2
K100RS Electrical issue


I posted this on the technical forum as well.

My issue started with a low battery that led to a stuck starter relay. I purchased a new relay from Beamer Boneyard and all was well. On the first ride after the new relay, I noticed that the headlight and left front turn signal were not working. I purchased new bulbs but no success. The light and signal show no voltage on the multi meter. One fuse was out and replaced, but still no luck.
Is there a relay that could be the issue? The switches seem to be fine.

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post #2 of 2 (permalink) Old Jul 18th, 2019, 3:59 pm
Join Date: Sep 2008
Location: Honolulu, HI, USA
Posts: 109
Trevor (as a two-time former K100RS owner over 12 years):

You need to get, read, understand the K100 electrical diagram. As diagrams go, it's not that difficult, and if you're going into electrical matters, it's essential. You DON'T want to hack at the electrical system, this will very likely get worse rather than better.

Electrical diagnosis (IMNSHO) requires first, knowledge of the circuit you suspect, second a testing methodology that provides applicable information, third, implementation of the test results. Overall, rational testing is most important.

I don't have the diagram handy any more since I sold my bikes 3 years ago, but a quick search should turn them up.

Last edited by Honolulu; Jul 18th, 2019 at 4:09 pm.
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