Sounds like they left the factory starter and converted the lighting system...
What alternator? 12 or 24 volt?
What ignition? military 24 volt or civilian 12 volt?
Tapping off one battery to run 12 volt and using both for 24 volt IS going to ruin batteries...either need to run a dual voltage system OR use a 24 to 12 volt converter...but dont tap off one for 12 and use both for 24 at the same time...
Lord send your Holy Ghost into our hearts and make the desire of our hearts Your Will.
Pro-choice, that's a LIE, babies don't choose to die!!