In Reply to: Re: 8N Starter Problems posted by Dan Mayer on September 15, 2018 at 17:38:48:
" 1. New Battery, stored on tender, reads 6.3 volts, so I think I can rule that out."
Not at all.
Check out tip # 49.
What was your hydrometer reading? A dead cell will easily show 6.3 volts across the posts.
Incorrect sized cables aren't helping your problem one bit. See tip # 41.
" 4. Bad ground between starter and block. I assume that since I can draw a spark off the starter housing with the jumper cable, that it's well grounded to the frame. Maybe I'm wrong." Yep. Seeing a spark does not assure you of a good ground.
Bottom line...…….test the battery. Take it to the parts store for a load test or buy a hydrometer.