I've gone through multiple electrical issues and finally found a bad master switch that seems(so far) to have been the culprit all along.

I've removed and replace the starter many times thinking this could be the problem because the gears that mesh with the flywheel had oil/water all inside. I figured when this mixture froze, it wouldn't allow the bendix to operate correctly.

The yellow cover that goes around the flywheel has a plug on the bottom of it but I can't find any info on what if anything is supposed to be in there.

I only see one plug on the top(at bout 11 o'clock looking forward to the cat) but it doesn't look like a fill hole because there's a plate or piece of metal 1/8 from the bottom of the hole.

There is a skid plate right under this cover which i had to cut away to find the plug. This tells me it's never been serviced or drained in decades.

Any information about this engine or knowledge you'd like to share would be appreciated. Thank you very much