[axman88]

I held the the relays and wiggled the wires going into socket. I got  the fuel pump to run until the injection primed and cut off the pump. Unfortunately, it won't stay running unless I'm holding the wires and manipulating the harness in a specific way.

Voltmeters, ohmmeters and test lights can all be used for diagnosing these sorts of problems, but for this kind of situation I like to use a buzz box.  One configuration has the buzzer with probes or clip leads, or one of each, that is powered from the vehicle's system.  Another configuration is self powered with internal batteries, when it sees a short it buzzes.  This tool lets one have both their eyes and fingers available for the wire manipulation, you don't need to be constantly looking to see what the light or meter is doing.  It's easier to pick up on the subtleties.

Little buzzers like this can have sturdier leads soldered on them.   https://www.ebay.com/itm/354817044494

[motorhedfred]

I probably pushed the female terminal partially out when I put the relays back in post degreasing. Oh well, that's often the way it goes when chasing electrical gremlins.

On to other things now. I'm going to switch out the gawd awful huge silencer for an upswept Emgo cocktail shaker with a more effective baffle. I'll wait till it's together to talk about that as I'm guessing/hoping it works a treat.

Does anyone know of a small round tachometer that will work correctly with the UCE EFI ignition system. I've seen the little rectangular "tiny tach" stuck to the handlebar clamp but I don't like the way they look....at all.

Again, thanks for all the advice and suggestions. You're a good group.