I used a Dremel model 414 1/2 inch diameter (12.7mm) felt polishing wheel dry with no polishing compound. It uses the #401 mandrel with the corkscrew looking tip.
https://www.dremel.com/en_US/product...ing-1-2-wheels
I tried the electric starter again last night and worked fine.
I believe that polishing the bendix end cap bore on the side cover did the trick for my bike, in addition to the larger battery cables and grounds. I am still using a relatively small capacity 150 CCA battery, but I am sure that a larger capacity battery like the 240 CCA Antigravity AG-YTZ7-8 would work better and might even start my bike in gear.
Wishing all happy starting and happy trails...... Cheers, Steve