I have been doing a complete rebuild of my GS850 GN 1979, and with a bike that should be mechanically sound, I am now ironing out the last wrinkles in the electrical system, and this issues has me puzzled.
Before I start describing the issue, I need to confess that it is very much a "resto mod" rebuild. I have installed a dynatek ignition, M-unit, Mosfet R/R (not connected yet) and done a complete from scratch wiring harness This of course complicates the problem solving, but I hope that something can be deducted from electrical theory and a lot of GS knowledge.
Measuring the battery voltage I am around:
12,4V when the battery is disconnected.
11,3V when the battery is connected and the ignition is off
7,8V when the battery is connected and the ignition is on
Climbing quickly back to 11,3V again when the ignition is turned off again.
I have tried disconnecting the power wire leading to the Dynatek ignition (replacing the points). With the power wire disconnected there still is a voltage drop, but a much smaller one. It only drops from 11,3V to 10,9V.
I am not sure which of these measurements I should be worried about. 5 months ago I had everything hooked up right, and the starter motor was working, but that was with an "under construction" wiring harness. Now the wiring harness is complete.... except for this minor snag.
Any ideas would be highly appreciated. Also any ways of testing my way to a conclusion.
Thank you.
Comment