Adam,
This is a test from your grandfather. He was at the Battle of the Bulge. You just have to get past the Battle of the Cub!
These types of problems can be difficult to check especially if your like me and have limited knowledge of electrical systems. Also remember that OLD Cub wiring systems are sometimes in really poor shape. I have been through a couple and they can have the wire coverings deteriorated and missing in spots.
I think your doing a good job following instructions and testing.
(I just went through a bunch of the same issues with a bigger tractor I am working on)
Regards,
Chris
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Casbohm Maple and Honey
www.mapleandhoney.com
Cubs: 147
R and the "train", 127 elec lift, 127, 125, 106, 102, 100, 86, 73, Brinly plow, Snow thrower, 2 Rototillers, several mower decks and several snow plows, #1 cart, Grandkids barrel cart.