Electric start only works when jumped...

[kansas]

I'm trying to narrow down my issue here.

My QMB139 will only electric start when jumped.

The battery is brand new as of yesterday afternoon.

I can kick start the scoot fine and rode it for awhile yesterday so even if the new battery was dead it should of charged.

When I engage the brake and press the start button I get nothing. No click, no starter whine, nothing.

But when I hook up jumper cables it all works fine. Engage brake, press starter button, starts up fine.

So I assume the starter is ok since it works when jumped
Same with the switch

Any ideas?