Since this project bike was not running when I picked it up and had been sitting outside for awhile, I don’t know what components of the electrical system work. So I remove the starter motor and test it.
Here is the link to the documentation on how I do this work and a short YouTube summary of the process.
VIDEO: 1983 BMW R80ST Remove And Test Starter Motor
The good news is the starter motor was in good condition and worked correctly. 🙂 I cleaned up the starter motor and the top engine compartment it sits in.