Have a p200 engine in my sprint, I used the Serie wiring harness from SIP.
Anyone use this harness?

I've got the shutter brake and horn switches, and regulator.

I thought I had it setup correctly, but using a test light, it seems something's up.

Do all the bulbs need to be in, or can I test the circuits with the test light?

If I ground my test light with the black wire at the handlebar switch, I get nothing when I probe with the other end.
But if I ground on the shift tube, it lights up when I probe the hot wire.
Is something not grounded that should be?