84 honda shadow no electrical power put jumper cables to auto and received full power and Bat in bike is new?

Question

84 honda shadow no electrical power put jumper cables to auto and received full power and Bat in bike is new?

Answer 1

Where did you connect the ground when you "put jumper cables to auto"?

Check that your battery ground is solid to the frame.

Answer 2

Just because the battery is new doesn't make it good.  Take it to a battery dealer and have it tested.

Answer 3

You may have a defective battery, or a battery that still needs to be charged before use. I think that's pretty unusual these days. Most batteries come dry charged. Drive the bike for a good while and see if it improves. Check your connections while you're at it.